THE COVERSArticles & Editorials April 2008 - Volume 18 Number 42
  
 BY BARRY AND RUTH GUIMBELLOT
 Snorkeling often is viewed as a more casual method of exploring the underwater world. More so than scuba diving, anyway. It requires no certification and no more than a mask, fins and snorkel. But it does require something that often gets little consideration: respect for your surroundings. In this month's cover feature, "Take Only Memories, Leave Only Bubbles: A Guide to Responsible Snorkeling," author Alex Brylske explains the small things snorkelers can do to make a big difference.
 editorial
SAY IT AIN'T SO, HAWKEYE

By Alex Brylske

It seems that life is always teaching us lessons. For me, a recent one is about the ubiquitous double-edged sword that's always poised to remind us that nothing is ever completely good nor completely bad. Scuba diving's relationship with the media is an excellent case in point.
Just a few months ago we featured an article on how television has inspired generations of divers and dive professionals, myself included. As I explained in the editorial of that issue, most divers my age credit the 1950s TV serial drama, "Sea Hunt," as the spark that ignited the entire sport of recreational diving. And it was the reinvigorated interest created by Jacques Cousteau's 1960s "Undersea World" series that served as the second stage needed to hurl diving into a stable orbit. So an argument can be made that, had it not been for the media - the hallowed boob tube, in particular - scuba diving might not exist as the organized activity it is today.
Yet, counterbalancing the plus side of the scale, the media isn't always our friend. Perhaps the best example of its negative side was the first ever summer blockbuster movie, "Jaws." Having been a dive professional during that first "summer of the shark," I can personally attest that it took us a long time to recover from Spielberg's Technicolor myths, and rekindle widespread interest in getting back into the water. And one need look no further than the local newspaper for more negativity toward diving, as almost every accident involving a scuba diver is followed by a sensational and misinformed article implying that the sport is as risky and foolhardy as Russian roulette.
Sometimes the press coverage is so off-base that it defies common sense, or at least the common wisdom of those even remotely familiar with diving. Such is the case for a recent news article in London's Evening Standard featuring veteran actor Donald Sutherland. In it, Sutherland recounts a horrifying experience in which, after experiencing intense chest pain, he's initially diagnosed with lung cancer only to have doctors determine that it was a blood clot, not a tumor, which they spotted on X-ray. Without any seeming justification, the doctors blame Sutherland's condition on - here it comes - "a diving injury," even though Sutherland reported no incident, while he was filming underwater scenes for the movie "Fool's Gold" (for which Sutherland had to become a certified diver).
Setting aside the issue that no other possibility was even considered for the clot besides diving, the real bombshell in the article comes when Sutherland describes what his doctor told him after his release. "It was a big relief," said Sutherland, "but then the specialist told me I shouldn't have been scuba diving beyond the age of 50." Say, what? Clearly, scuba diving still hasn't made it into America's medical school curriculum because, as anyone who has even donned a tank knows, many people don't even start diving until age 50. In fact, more than a small portion of this older crowd goes on to make thousands of dives, with many plus-50 divers going on to become dive professionals. And just in case you hadn't realized it, there are lots of folks out there today who continue diving well into their 70s and beyond. In fact, I've met more than one octogenarian diver.
Let's get this straight once and for all: In and of itself, age is no barrier to scuba diving. The issue is health. While no one can deny that there's a direct relationship between increasing age and declining health, it's clearly wrong to assume that this relationship proceeds in the same way for everyone. And it's equally wrong to assume that at some magical date on the calendar, people are rendered unfit for anything but the challenges of a rocking chair. The idea that 50, or any other age, is an upward limit for diving is patently absurd. It's ironic that the actor so well known for playing the movie version of Dr. Hawkeye Pierce was given such blatantly misinformed advice from his own colleagues.
 


buddy lines
'SEA HUNT' NOSTALGIA

I just finished reading Greg Laslo's "Must Sea TV" article and was thrilled with it ("Must Sea TV: For 50 Years, Diving and Television Have Been the Best of Buddies," Dive Training, February 2008). Having been born in 1953, I grew up watching "Sea Hunt" and was excited with all the underwater action. It made bathtub time more fun when I would hold my breath and play with those plastic divers filled with baking soda. It was also fun to see the episodes that also featured Jeff and Beau Bridges when they were children. It made me realize, even as a child, that activities like scuba were not beyond my reach. I also love the older feature films, like "Frogmen," but also the newer stuff, like "The Big Blue," "The Deep," "Into the Blue" and "Men of Honor."
I also remember "Sea Hunt" episodes with Bruce Dern and Jack Nicholson, as well as the Leonard Nimoy episodes. But I'm also a big "Star Trek" fan and I just have to correct Greg (or some editor). Nimoy would be known forever as "Mr." Spock, not "Dr." Spock, a pediatrician who wrote "Baby and Child Care."
My daughter was one of those kids Greg mentions, who become interested in sharks when in elementary and junior high school, but never dreamed she'd one day be swimming with them. She's 27 years old today and will never forget when she and her brother, mother and I dived with sharks in the Great Blue Hole, Shark Ray Alley and other fantastic Belize dive sites.
Besides being an Advanced Open Water diver today, with photography, wreck diving and nitrox certifications, I'm also a comic book collector and got a real kick from the Dell comic covers.
Keep it coming!
Gordon Harman
West Jordan, Utah

Inspiring Episodes
In February 1958, at the age of 10, I watched the first episode of "Sea Hunt." Somehow I knew that my life was never going to be the same. I only missed one of the 155 episodes - I fell asleep (after all, I was a little boy). The episodes were viewed in a reverential silence. I made my first dive in murky Saratoga Lake (Saratoga Springs, New York) at age 11, saw rocks and minnows and thought I was in heaven. Today, thousands of dives later, I have all of the 155 episodes, all of the comic books, both versions of the "Sea Hunt" board game, the coloring book, the juvenile hardcover book, advertisements for the show and various products, countless articles on "Sea Hunt" from dive mags and, of course, my blue double-hose regulator. My watch: a Rolex Submariner, naturally.
I read your article on the influence of "Sea Hunt" and other television [shows] on modern diving several times and I thank you for it. Because of "Sea Hunt," I have traveled the world, taken in the culture of Caribbean islands, done the essential dives (Belize's Blue Hole, Cayman's North Wall, shark feeding dives, the U-352 [and the U-853], the "James Bond" shipwrecks, various deep wrecks, etc.).
That single television show exposed me to a marvelous world I might never have known. Please advise me if you have done other issues with articles on "Sea Hunt"; I would like to buy them. One more thing: After I ascend, unlike all the other divers, I still place my mask on top of my head, a la Mike Nelson, and it's never been knocked off!
Thanks again for the tribute.
John Penzer
Saratoga Springs, New York

'Primus' Memorable Too
Being born in 1961, I missed "Sea Hunt" in its first run. But I am always surprised when articles like yours omit the forgotten classic from Ivan Tors in the early '70s: "Primus." It starred Robert Brown as Carter Primus and Will Kuluva as Charlie, his crusty sidekick, and euro-babe Eva Renzi as Toni. It was very progressive for its time, using DPVs, ROVs and even a rebreather. It ran for one season and then just disappeared. But it got me started diving and I'm also a life member of the Eva Renzi fan club.
Kevin Campbell
Via e-mail

The Other Nelson
Each month I look forward to reading your magazine. The articles are interesting, informative and entertaining. However, a recent article brought a couple of things to my attention that I feel compelled to clarify.
Your article, "Must Sea TV" (February 2008), focusing primarily on Mike Nelson's (Lloyd Bridges) adventures on "Sea Hunt," really brought back memories. Although, having grown up in the '60s, it was another "Nelson" that inspired me to don a wet suit - Admiral Nelson (Richard Basehart) and the crew of the submarine Seaview on "Voyage to the Bottom of the Sea." I didn't discover "Sea Hunt" until it reran in the early '70s.
Also in the article, author Greg Laslo mentions that Leonard Nimoy guested on "Sea Hunt" before becoming "known forever as Dr. Spock..." Apparently Greg has been underwater for 40 years (lucky fellow), since he didn't know that Dr. Spock was a well-known pediatrician, while Nimoy, on the other hand, portrayed Mr. Spock on the '60s sci-fi series "Star Trek" and many of that franchise's later incarnations.
All in all, the article was a fascinating examination of where television has been and where it may be going - and, hopefully, it will be going back underwater. Who knows, the popularity of resurrecting television series from the past doesn't seem to be slowing. Perhaps Mike Nelson may soon find himself, once again, on a "Sea Hunt."
See you on the bottom.
Edwin A. Rivers
Gatesville, Texas

Like Mike
I have been diving for over 35 years, so, yes, I'm an oldie. When I read Alex [Brylske's] editorial about "Being Like Mike" I felt like I was 10 years old again. And yes, Alex, there are no more heroes that we can look to.
The article is up on my wall. It was "Sea Hunt" that got me into diving and my pestering of my dad to take lessons from Dave Olson in Walnut Creek, California, when I was 13; Dave had his own certification card, which I still have. These days, I'm an instructor with three children who dive. Mike Nelson is still my hero and it saddens me that my kids will never know the joy of watching your hero battle evil and win. Thank you for printing this article. It made me very happy.
Greg Miller
Via e-mail

Environmental Overkill
For the past year I have seen a dramatic increase in the number of articles focusing on environmentalist issues in your magazine. I am sorry, but I just do not care to read them at all. Personal values aside, I get your magazine so I can read about diving, not the environment. I can understand a diving magazine taking an interest in the environment, and even publishing what we as divers can do to prevent ourselves from harming the environment, but it has gotten ridiculous lately. In the latest (March 2008) issue, you have one nine-page article that, interesting as it might be, has absolutely zero to do with diving ("Sound in the Sea: The Not-So-Silent World"). The only purpose of which, I can only assume, is a thinly veiled environmental piece about global warming and saving the whales. I was happy to start reading your article about the queen conch, "The Queen Conch: Will Her Reign Continue," but you only devoted four paragraphs to a description of this marine invertebrate, and the remainder of the five pages was devoted to marine regulations, overfishing, etc. I read enough politically charged commentary in my daily life; I enjoy scuba diving for the release. Not only is your environmental activism slant in recent articles putting me off, it also isn't working! If you want your readers to get involved with the environment, continue educating us about the marine creatures, and the environment they live in. If you get your readers to appreciate the marine world, the wish to preserve it will come naturally.
Tom (last name withheld)
Via e-mail

Low-pressure Leaks
I am an old retired diving instructor/dive shop owner, and all-around "know it all." After reading the January 2008 article, "Final Check: What It Looks Like When... Bubbles Mean Trouble," I felt the need to put in my 2 cents worth of vast accumulated knowledge (40 years).
The authors seem to be more worried about the high-pressure hoses versus the low-pressure hoses and/or tank to regulator O-rings. When a high-pressure hose bursts, there is a lot of noise, and that is about it. I have not seen, sold or serviced a regulator or high-pressure hose that does not have the air flow severely restricted at the regulator high-pressure ports and male end of the high-pressure hose (double redundant). Just to see what would happen, I cut a high-pressure hose completely in half, put the regulator on a full tank of air and completely opened the valve. The hose did not whip, and the air was still flowing out 45 minutes later. This type of leak is a problem and must be corrected. But it is not a major panic problem, even at depth.
It is very different when the leaks involve the low-pressure side. Everything on the low-pressure side is designed to provide high volumes of air with minimal effort. If a low-pressure O-ring or a low-pressure hose fails, that tank of air is gone just as fast as if you opened the valve with no regulator in place. To state that minor leaks around the tank valve-regulator connection "are not serious" and only suggest that the valve O-ring needs changing could be a disastrous mistake.
Steve Thompson
Hiawatha, Iowa

Safe 'Turn-on'
While recently reading your November 2007 Dive Training magazine, the "Final Check" article ("What It Looks Like When...You Activate Your Air Supply - Correctly") reminded me of what I initially was taught by my first instructor - also a friend of the family - while living in Hawaii in the late 1950s. He was a Navy UDT (pre-SEAL) instructor and was a stickler for procedures and safety. He not only insisted that you as the diver hold the gauge by the hose pointed away from you but to turn the gauge over and "slowly" turn on the air until the system is charged. Once charged, you can look at the gauge and then turn on the air until it comes to the stops and then turn the pressure back one-quarter of a turn. Having been a divemaster in the '80s and an instructor since 1990, I have used this method of charging my systems wherever and whenever I dive. I also teach this method to my students whether they are new divers, advanced divers, divemasters or other instructors. This is a safe form of charging the system. Speaking from experience, I have had gauges explode or hoses burst, so turning on the system slowly has always paid off.
I also advocate your magazine as the best diving magazine for all divers regardless of their experience. Thank you and keep up the good work.
Thomas Orred
San Diego

 


dive observer
VANDENBERG SCHEDULED TO BE SUNK MAY 15
By Gene Gentrup

May 15 is the scheduled sink date of a retired U.S. Air Force missile tracking ship, which will be transformed into an artificial reef off Key West, Florida, organizers say.
"This is a major event for us, a great opportunity for the health of the reef as well as an economic shot in the arm for the Keys," said Chris Norwood, president of Artificial Reefs of the Keys. "Tens of thousands of people have been waiting to hear this date."
The General Hoyt S. Vandenberg has been docked in a Norfolk, Virginia, shipyard where workers are removing environmental hazards, prior to its scuttling in the Florida Keys National Marine Sanctuary.
Officials with Reefmakers, the project's facilitator, are planning to coordinate towing of the 522-foot-long (158-m) vessel to Key West sometime in March for final preparations.
The Vandenberg project should provide additional marine habitat and provide a new attraction for recreational divers, to relieve pressure on natural coral reefs.
"Not only do artificial reefs divert recreational user pressure from natural reefs, they also create a valuable habitat and new breeding grounds for the marine environment," said Joe Weatherby of Reefmakers. "The Vandenberg will provide tools and resources to create sustained educational, social and cultural programs while also generating substantial revenues for the community."
Before it was decommissioned in 1983, the Vandenberg also tracked manned U.S. space missions, beginning with Mercury blastoffs in the early 1960s. The ship "played" a role as a Russian science ship in "Virus," a 1999 motion picture starring Jamie Lee Curtis.
Funding for the project is coming from several local government and private-sector resources including the City of Key West and the Monroe County Tourist Development Council. For more information, visit www.bigshipwrecks.com/.



Diving Notes and News
NEW JERSEY DIVERS EYE FORMER DESTROYER

Some divers and fishermen want to sink a 563-foot (171-m) former Navy destroyer off the coast of New Jersey. The former USS Arthur W. Radford has been made available for artificial reefing as part of a Navy program to sink mothballed vessels instead of selling them for scrap.
The ship is 55 feet (17-m) wide, its draft below water is 32 feet (10 m), and it stands 140 feet (42-m) above the surface of the water. Bill Figley, who ran New Jersey's reef network for years but is now retired, is helping with the project. He says the project will cost at least $500,000 and up to $4 million to sink the ship off the New Jersey coast. This includes the cost of making sure it is environmentally safe before it is sunk.
Not everyone is sold on the idea, however. Some think the cost is too high and that after preparations for sinking, the ship would appear nothing like it does now.
If sunk off New Jersey, the Radford would be the largest ship, and first warship, ever added to the New Jersey Department of Environmental Protection's system of 15 offshore reefs. The largest ship thus far has been the 456-foot (138-m) USS Algol at the Shark River Reef off Manasquan Inlet.
PASSPORT FEES HIT $100
The cost of a passport reached $100 on February 1.
Saying it needs more money to cover the cost of providing "efficient and secure passport services," the U.S. State Department said it was raising passport fees from $97 to $100 for adults and from $82 to $85 for children younger than 16. It said renewals, now $67, will cost $75.
In another change, both parents are now required to appear in person - or one parent in person with required documentation - when applying for a passport for a child younger than 16. The current cutoff is age 14. The reason for that change: "to protect children from abduction, and to address concerns regarding runaway children," the State Department said.
New application forms and updated information on applying for a passport and passport card is available at http://travel.state.gov/passport.
In related news, divers and other travelers now have until June 29, 2009, before they're required to show a passport to travel by land or sea to Canada or Mexico.
The new rule was to have gone into effect this summer but a last-minute bill passed by Congress and signed by President Bush right before Christmas delayed that deadline. The bill specifies June 2009 as the new deadline, a State Department spokesman said.
For those traveling by air to Canada and Mexico, the need for passports went into effect last year.
There is one slight change for land travel to and from Canada and Mexico that went into effect January 31. U.S. citizens are no longer able to enter the United States using an oral declaration, or simply saying they are a U.S. citizen and showing a driver's license.
Here's what travelers will need between now and June 2009 to prove their citizenship when going to and from Canada and Mexico by land or sea:
An original or copy of a birth certificate (for all ages, including infants and children) or proof of citizenship.
A government-issued photo ID, such as a driver's license, for those over 19 years old.

SCUBA DIVING
CAR TO BE UNVIELED

Resembling something from a James Bond movie, the "sQuba" is billed as the "world's first real diving car."
The product of Swiss company Rinspeed, the sQuba can be driven on land, and by the push of a button be transformed into an amphibious vehicle capable of reaching depths of 33 feet (10 m).
An electric motor with powerful torque drives the rear wheels, and underwater propulsion comes from two propellers in the stern and two powerful jet drives in the bow. Rinspeed says the vehicle has no emissions and no pollution. The lightweight body, with components made of futuristic "Carbon Nano Tubes," can hold a driver and passenger who are supplied with fresh breathing air by a self-contained on-board system.
For more information, visit www.rinspeed.com/pages/content/frames_e.htm.

Jack Prodanovich, one of three men who in 1933 started the San Diego Bottom Scratchers, a group later recognized as the founding fathers of free diving, died February 7 of respiratory failure. He was 94.
Along with Glenn Orr and Ben Stone, Prodanovich formed a group with humble beginnings by fishing with little more than dive masks and spears. Their passion evolved into more serious underwater hunting with spear guns the men made themselves.
In 2003, six of the club's remaining living members gathered for their 70th anniversary. Prodanovich received an award from the Diving Equipment and Marketing Association (DEMA) that read, "With little more than homemade masks and bare skin, you were the first to open the ocean door. Thank you for leading us. Congratulations Bottom Scratchers Dive Club." At the reunion Prodanovich had a display of his innovative, two-piece trigger spear guns. His Bottom Scratcher spear gun was more than six feet long.
Prodanovich will be honored in May with the inaugural Jack Prodanovich White Seabass Open benefiting San Diego-based Hubbs-SeaWorld Research Institute's White Seabass hatchery and restocking program. "The Jack" will be held Memorial Day Weekend.
Donations in Jack Prodanovich's name can be sent to Hubbs-SeaWorld Research Institute's white seabass program. For more information, visit www.hswri.org.

Ralph B. White, a cinematographer who in 1985 documented the expedition that found the wreck of the RMS Titanic, died February 4, 2008, in Glendale, California, from complications of an aortic aneurysm. He was 66.
White was an award-winning cinematographer, video cameraman and editor, with hundreds of motion picture and television credits to his name. He was one of the few people experienced in the methodology and technology required to safely reach the deep ocean depths to acquire images. After documenting the expedition that found the wreck of the RMS Titanic, he co-directed the salvage operation and photography during the recovery of more 5,000 artifacts from Titanic's debris field.
White was the submersible cameraman for the 1991 IMAX feature film "Titanica," and in 1995-96 he was the expedition leader and second unit cameraman for James Cameron's Academy Award-winning feature film "Titanic." White made 35 dives to the 12,000-foot-deep wreck of the Titanic.

 

 

EVENTS
DUI DOG RALLY & DEMO TOUR DATES ANNOUNCED

The sites for this year's DUI Dog Rally & Demo Tour have been released. Dates and sites are April 5-6 at Alabama Blue Water Adventures, Pelham, Alabama; April 12-13 at Dewey Short Dam Site, Branson, Missouri; April 26-27 at Windy Point, Lake Travis, Texas; May 3-4 at Stagefort Park in Gloucester, Massachusetts; May 17-18 at Dutch Springs in Bethlehem, Pennsylvania; May 30 to June 1 at Gilboa Quarry in Findlay, Ohio; June 7-8 at Haigh Quarry in Kankakee, Illinois; June 21-22 at Wazee Lake in Black River Falls, Wisconsin; August 22-24 at Oregon Coast Aquarium in Newport, Oregon; September 13-14 at Sand Harbor State Park in Lake Tahoe, Nevada; September 27-28 at Brownstone Quarry in Portland, Connecticut; October 4-5 at Mermet Springs in Metropolis, Illinois; October 18-19 at Lake Rawlings in Rawlings, Virginia; November 8-9 at Manatee Springs in Chiefland, Florida; and November 15-16 at Clear Springs Scuba Park in Terrell, Texas.

HISTORICAL DIVING
SOCIETY CONFERENCE APRIL 18-20

The Historical Diving Society has scheduled its 2008 conference for April 18-20 at the Monterey Maritime and History Museum, in Monterey, California.
Speakers include:
Tom Kendrick, presenting "Swimming with Sea Monsters: 22 Years as a California Sea Urchin Diver."
Nyle C. Monday, presenting "Dragons Under the Sea: the FUKURYU and the Underwater Defense of Japan, 1945."
Chris Swan, presenting "The Development of Commercial Helium Diving."
A. L. "Scrap" Lundy, presenting "The Divers Who Made Cannery Row the Sardine Capital of the World."
The weekend event will be held in conjunction with the Association of Diving Contractors International Western Chapter meeting. The society will hold its awards banquet the evening of Saturday, April 19.
All weekend events are open to the public. Complete details of the gathering, including exhibits, additional speakers, banquet guest speaker and full weekend program can be found at www.hds.org.

OCEAN FEST DIVE
& ADVENTURE SPORTS EXPO APRIL 18-20

Billed as the "only dive show where you can dive at the show," the Fort Lauderdale, Florida, event also offers more than 150 exhibitors, free daily seminars, live shows and underwater treasure hunts.
Ocean Fest will be held on the beach in Fort Lauderdale on A1A just south of Las Olas Boulevard north of the Yankee Clipper Hotel and the Bahia Mar Resort and Yacht Club and Bahia Cabana Hotel.
Admission is $9 per person per day. Children under 12 are admitted free, and admission includes all exhibits, seminars and presentations. Three-day discounted passes for $19 per person are available. Discounted tickets are available online. For more information, call (800) 513-5902 or (954) 839-8516, or visit www.oceanfest.com.

SCUBAFEST 2008 SET FOR APRIL 25-27
Dan Orr, chief operating officer of Divers Alert Network, is the keynote speaker for this year's Scubafest, scheduled for April 25-27 at the Holiday Inn at Roberts Centre in Wilmington, Ohio. The show also features an underwater photography contest, exhibits, "discover scuba," workshops and other speakers.
Show hours are 4-9 p.m. Friday, 10 a.m. to 5 p.m. Saturday, and 10 a.m. to 4 p.m. Sunday. For more information, visit www.scubafest.org.


 




Books
'NAVAL FORCES UNDER THE SEA: THE REST OF THE STORY'

Sponsored by the Office of Naval Research and the Undersea Hyperbaric Medical Society, this book is a followup to "Naval Forces Under the Sea: A Look Back, A Look Ahead," which is based on information from a symposium to address and highlight the Navy's contributions to diving and submarine rescue through lectures, panel discussions and oral history recordings. The latest book was published to record the portions of the Navy's undersea story that were left untold, and to give details of the whole story to include "how man, through the Navy, challenged the oceans' depths - how they sometimes lost and how they sometimes won," according to promoters.
The 402-page hardcover book tells the history of undersea warfare since the introduction of the first U.S. submarine, the USS Holland.
For more information about "Naval Forces Under the Sea: The Rest of the Story," ask your local dive shop or call (800) 468-1055.

'ENDING HEAD AND NECK PAIN'

Divers who struggle with temporomandibular joint (TMJ) syndrome might want to check out this book from Randall C. Moles, DDS, MS.
"Ending Head and Neck Pain" is a 182-page paperback that explores everything from the various forms of head pain to physical therapy and other forms of relief. In between is an entire chapter devoted to TMJ: "TM Dysfunction: What goes wrong and why it hurts." The author says that readers should gain a better understanding of TMJ, as well as greater knowledge about grinding and damaged joints, chronic muscle fatigue and jaw overload. For more information, ask your local dive shop or call (414) 529-4044.

 




always learning
DIVING INTO A TIME MACHINE:
Sunken Shipwrecks Become Living History Lesson


Story and photos by Marty Snyderman
When I first began my diving career, I didn't consider myself a big fan of wreck diving. I was more interested in marine life. It didn't matter to me if a creature was nudibranch-small or whale-big, whether it lived in a tropical reef community or the colder waters of a temperate sea, or whether an animal was common or rare. If it lived in the ocean, I wanted to learn about, and ultimately photograph it. However, my first trip to Truk Lagoon (aka Chuuk) in Micronesia's Caroline Islands changed all that.
I was working in the film business as an underwater cameraman in 1982 when I got a phone call asking me to shoot a film about Truk's war history. Truk was becoming very well known in diving circles at the time, and it was fast becoming recognized as a hot spot for wreck divers, so I knew, or at least thought I knew, a little about what Truk had to offer divers.
I thought what Truk had to offer me was a paycheck and the opportunity to see and photograph the marine animals that had been attracted to the numerous shipwrecks strewn across the bottom of the lagoon from the battle for Truk. I had seen photographs of many of the larger wrecks, and it was well-known in the diving community that in the 38 years since Operation Hailstone the wrecks had essentially been transformed into tropical reefs. Every major wreck was overgrown with colorful soft corals and other invertebrates that, in turn, served as magnets for the lagoon's fish populations. I was very excited about seeing all of the marine life, but I wasn't all that interested in seeing the shipwrecks. Or so I thought.

A Marine Life Enthusiast Becomes a History Buff
Truk was a major staging area and logistical base for the Imperial Japanese Navy during World War II. The atoll was the home of the only major Japanese air base within range of the Marshall Islands and a vital source of support for Japanese forces located throughout the Central and South Pacific. In essence, Truk served the Japanese war effort in much the same way Pearl Harbor served the Americans.
To ensure superiority for an invasion of the strategically located Eniwetok atoll, the American brain trust ordered an attack on the Japanese forces at Truk Lagoon. On February 17-18, 1944, U.S. forces launched a massive attack known as Operation Hailstone. Despite the fact that only days before the attack many Japanese aircraft carriers, battleships and heavy cruisers were relocated from Truk to the nearby waters of Palau, during Operation Hailstone the Americans sunk more than 50 Japanese ships, including three light cruisers, four destroyers and two submarine tenders, and destroyed more than 250 aircraft. The battle resulted in a major victory for the Americans, and greatly diminished Truk's role in the Japanese war effort.
Our first dive in Truk was on the Fujikawa Maru, a 435-foot- (132-m-) long Japanese warship originally built as a carrier of cargo and people, but that was converted into an armed aircraft ferry in late 1940. The Fujikawa Maru is believed to have been sunk by a single aerial torpedo.
As our film crew splashed over the side and our bubbles cleared, I found myself truly taken aback not by all of the colorful marine life, although there was plenty to see, but by the intensity of emotions I felt as something became clear: I was staring at a horrific world history moment essentially frozen in time. While its mast still broke the surface, the hull of the Fujikawa Maru was sitting on the seafloor exactly as she had been since an American torpedo sealed its fate during Operation Hailstone.
Like many people, I had visited historic sites such as castles, political prisons, capitol buildings, the homes of famous people and battlefields. But during those visits I had never felt like I was actually experiencing the past, and in this case the realities of war, instead of just trying to understand it. As I stared down at the Fujikawa Maru during my descent, I felt like I was diving into a time machine.
Over the course of the next several weeks as we filmed the shipwrecks of Truk Lagoon, I repeatedly found myself completely taken in by the experience of seeing so many weapons of war. Nothing had been cleaned up. Deck guns were mangled, ammunition was scattered about, bunks weren't made, deck lines weren't neatly coiled and life did not appear orderly and perfectly managed as was the case at other historic sites I had visited. Instead, debris was scattered about as would be expected when ships and their crews meet a violent end.
Seeing the once mighty ships in pieces on the bottom of the sea and occasionally spotting the skeletal remains of Japanese soldiers never recovered made an indelible impression on me. Daily as we dived on shipwreck after shipwreck I repeatedly felt intense waves of emotions about the horrors of war, and could not help but reflect upon war as a horrible waste of people and resources.
Even though I am a proud American, and my side "won" the battle and the war, when I swam around all of those massive ships, I thought of what they cost the world in money, resources, man-hours and ultimately lives. It was a staggering reminder of the true price of war and the sometimes disappointing history of mankind.

From Micronesia to Mexico and Beyond
Not long after returning home from Truk I had another opportunity to be part of a film crew that hoped to document a shipwreck. This time I was off to Vera Cruz, Mexico, with explorer George Belcher to try to find and be the first to film the second USS Somers, a U.S. Navy brig that was sunk in 1846 in the battle of Vera Cruz during the Mexican-American war. The ship had a storied past stemming from a supposed act of mutiny led by Philip Spencer, the son of the then U.S. secretary of war. Spencer and two others were tried and hanged at sea, and from that date on many sailors viewed the Somers as a haunted ship.
While under the command of Raphael Semmes, who later became the commanding officer of the renowned Confederate ship the CSS Alabama, the Somers met its fate in a squall while pursuing a blockade runner. Seven crewmembers were taken captive. Another 32 drowned.
As a result of Belcher's leadership and the use of a magnetometer, a device used to detect magnetic anomalies, we found the Somers in 100 feet (30 m) of water. It was a wooden ship and showed a lot more deterioration from time on the seafloor than did the more modern Japanese ships at Truk, but while the hull had deteriorated, numerous artifacts that were strewn around the deck told the story of what life at sea was like aboard the Somers on the fateful day in December 1846 when it got caught in a powerful storm.
Just as was the case in Truk when I first saw the Fujikawa Maru, as soon as the Somers came into view I found myself feeling sad for the seamen who lost their lives while serving their country, and I felt the same kind of sadness for and disappointment in humankind that I felt so intensely in Truk, and I once again felt in a surreal way that I was almost watching history unfold in front of me instead of just filming its remains.
In the years since the Somers expedition, while diving on other wartime shipwrecks in places as far away as Palau and Papua New Guinea and as close to home as the sector of the Atlantic Ocean along the Outer Banks of North Carolina and Virginia known as the Graveyard of the Atlantic, I have had that sense of d‚j… vu all over again. The same thoughts careened about in my head, and I always felt some powerful connection to the past, almost as if I was able to witness the events that took place when the ships and their crews met their fate.
In a twist of fate, when I was invited to dive a number of World War II shipwrecks off the North Carolina coast, the focus of the trip was supposed to be the opportunity to photograph the sand tiger sharks (Carcharias taurus) that often cruise close to the wrecks. With large, muscular bodies and gnarly teeth often exposed, as they often swim with their mouths partially agape, sand tigers make wonderful subjects. At the time I only had a few sand tiger images, but by then I had learned to be just as excited about the opportunity to see, feel and learn about human history as I was about the chance to see the marine creatures that inhabit the areas where history was made.
While as divers we so often think of ships that were sunk during wars as providing us with underwater playgrounds that teem with marine life, my experiences have taught me that wrecks are so much more than an underwater Disneyland. They are windows into the past that allow us not just to understand, but to feel in our bones what the world and life aboard a ship were like at a given time in human history.



 





no dumb questions
WARMING TRENDS,
DIVE SEQUENCES, RETURNING TO DIVING AFTER DCI
By Alex Brylske


Q:New diver Toni Ann Waltz is tired of getting cold. "I recently completed my Open Water certification and really, really love diving. However, I have one problem that I don't quite understand: I seem to get lots colder than other divers. On all of my training dives, I was able to finish everything the instructor required, but I had to terminate my dives way sooner than the other students in my class because I got so cold. We all wore the exact same wet suits, and I'm not even close to what you'd call 'skinny,' which is why this doesn't make any sense to me. I'm also not one of those people who's overly affected by cold weather in winter. Am I doing something wrong or what?"


A:You didn't give me a lot of information to go on, so I'll have to make some assumptions. I'm guessing that you're diving in temperate water with a full wet suit and accessories including a hood. If that's not the case, then the first thing that I'd advise is wearing a hood. Because of the enormous amount of heat loss through the head - a subject of another question from a few months back - the addition of that one item alone can make all the difference in the world. My preference is to wear not just a hood, but a hood-attached vest (or wear a suit that has a hood built on to the jacket).
If you do wear a hood, then there are some other factors to consider. You indicated that everyone in your course wore the same exposure suit, so I'm assuming this means that they were rentals. Wet suit technology has progressed a long way in recent years, and now rental wet suits generally do a very good job of keeping divers warm (something which wasn't always the case in the past). Still, they do have some limitations regarding fit. Some lucky souls are able to fit perfectly into a stock size, but that's not the case for everyone. From my experience working in dive stores years ago, I found that women, in particular, had problems with stock sizes. Manufacturers have tried to address this by providing a much wider selection of size options today, but still, there are always going to be those who don't, quite literally, fit the mold.
My advice is to make an appointment with your instructor or other knowledgeable person at your local dive center, and have them fit you properly with your own suit. You may find that it's just a matter of selecting a different stock size, or perhaps a custom-tailored suit is best. In most cases, a custom suit doesn't cost all that much more than a stock, so don't be hesitant if that's their advice. Of course, you said nothing about the suit thickness. Perhaps increasing that, alone, would be enough to do the trick.
Aside from exposure suit technology issues, there are also a few things you can do to help avoid getting cold before and after diving. The most important consideration is never start a dive in a cold state. Make sure that you dress warmly - wear more clothing than you think you'll need - and never don your suit in a cold environment. Go below deck, in your car or somewhere not directly exposed to the elements. For cold-water diving, some divers even "precharge" their wet suit by pouring warm (not scalding) water into their suit just before entry. The better the suit fits, the better it can retain this warm layer of water, thus preventing that initial rush of cold water so dreaded by divers in cold climes.
Once in the water there's not much you can do but avoid any motion that creates water circulation through your suit (that's why a good fit is so essential). Some divers have reported good results from "heat packs" that are now on the market. These are filled with a liquid containing chemicals that, when activated, react exothermically, providing heat for a few hours. Worn under your suit in strategic locations - like the chest and back - they're far better than the other popular but limited option of "self-heating" (urinating in) the suit. There has long been a debate over whether one should or shouldn't exercise vigorously to maintain or generate body heat. Some contend that this just hastens the cooling effect, to say nothing of its implications for possibly increasing the risk of decompression sickness. My advice has always been to avoid unnecessary or overly strenuous exercise while diving.
Even if you manage to avoid getting cold in the water, you have to consider what happens when you exit (especially if you're planning subsequent dives). Most new divers don't realize what a great refrigerator a wet suit really is. The protective exterior nylon covering traps water, allowing for very efficient evaporation. And it's this evaporative process that saps heat. So, either wear a windproof garment over the wet suit between dives, or remove the suit completely and get into dry clothes. Of course, there's another way you can eliminate the problem immediately and forever: Purchase a dry suit.

Q:Kirby Roberts had a query about dive sequences. "I'm confused and would like another opinion. I've been told two different things about making more than one dive. My instructor told us to always make the deepest dive first but, on a recent trip, the divemaster said that it didn't make any difference if the first dive was deeper or shallower than the second. What's your advice?"
A:It's easy to understand your confusion over this issue because the "deepest dive first" was, for most of the history of recreational diving, a commandment of diving safety. In fact, the "deepest first" mentality even gave rise to calling any multiple-dive profile that began with a shallow dive a "reverse profile." However, thinking changed a few years ago. Here's a little history.
A crack in the dike began with the advent of dive computers. Programmed with the actual decompression model, and able to manipulate data in real time, these devices do their calculations regardless of the dive sequence and profile. This led divers, as well as some scientists and researchers, to ask, what's really so bad about reverse profile diving, anyway? In sorting out the question, we discovered that this sacrosanct rule wasn't really backed up by a lot of evidence or theoretical rationale.
Seeing a need to revisit this issue, a workshop was organized back in 1999 by Michael Lang, the head of the Smithsonian Institution's Scientific Diving Program, and Dr. Charles Lehner of the University of Wisconsin and member of the Undersea Medical Society. The program drew 50 participants and covered a very wide range of issues. Workshop participants included diver training organizations, equipment manufacturers, academics, representatives from commercial diving and military diving, several diving medical experts and staff from the Divers Alert Network (DAN).
Over the course of the program 28 papers were presented. Discussions included topics on the evolution of repetitive diving; history of the "deepest dive first" rule; the physics, physiology and theoretical modeling of decompression; plus an in-depth examination of dive profiles and decompression accidents from commercial and military diving (groups that for practical reasons often cannot make their deepest dive first). Dive Training was a workshop co-sponsor, so I attended the program representing the magazine. By the afternoon, it became obvious that there really was no good theoretical reason for the "deepest dive first" rule. Of course, like all scientific conferences, attendees were careful to qualify their conclusions by pointing out the limited range of profiles studied, and relative sparse data. Still, in the end, the workshop attendees agreed on four main points:
Historically neither the U.S. Navy nor the commercial sector has prohibited reverse dive profiles.
Reverse dive profiles are being performed in recreational, scientific, commercial and military diving.
The prohibition of reverse dive profiles by recreational training organizations cannot be traced to any definite diving experience that indicates an increased risk of DCS.
No convincing evidence was presented that reverse dive profiles within the no-decompression limits lead to a measurable increase in the risk of DCS.
Their conclusion was that "[t]he workshop finds no reason for the diving communities to prohibit reverse dive profiles for no-decompression dives less than 40 msw (130 fsw) and depth differentials less than 12 msw (40 fsw)." If you'd like to read more about the issue, I wrote a feature article on the workshop entitled, "A New Perspective on Reverse Profile Diving: What Science Has to Say," which appeared in the February 2000 issue of Dive Training. You can also get a copy of the full workshop proceedings by writing to Best Publishing, PO Box 30100, Flagstaff, AZ 86003-1010. The cost is $25.
One final point shouldn't be forgotten in the zeal to rewrite rules, however. Regardless of how decompression may or may not be affected by reverse profile diving, let's not forget an important safety implication that has an even more immediate consequence than getting the bends: When making a multilevel dive - as are most recreational dive profiles - common sense still dictates that it's always best to be in the shallower portion of a dive when your air supply is low. So, in the final analysis, changing the "deepest dive first" rule hasn't really made any practical difference in the way we dive.

Q:Elizabeth Del Toro sent in a question that is rarely asked about decompression sickness. "My question isn't about me but a friend who recently got the bends. I wasn't with him the day it happened, but what occurred seems incredible. He told me that he never exceeded 50 feet [15 m] all day, and I know that's true because the area where he was diving doesn't get any deeper than that. He also said that both dives he made that day never exceeded 45 minutes (something that I can't verify, but have no reason to doubt). Anyway, my real question is will he ever be allowed to dive again, and if he can, should he?"

A:I assume from your question that you're surprised that dive profiles in such a shallow range for such limited amounts of time resulted in decompression sickness. Don't be. Bends is the possible outcome from virtually any dive, even those within current limits of any decompression model. Sometimes it just happens, and we don't know why. It's the best reason that I know to use a conservative approach to all dive planning and dive computer use.
As to the issue of returning to diving, it's an impossible question to answer out of context. The U.S. Navy does have a "return to diving" policy, but it certainly wasn't written for recreational divers. Still, it does provide some useful perspective. The highlights are as follows:

Divers with uncomplicated, pain-only DCI cases and whose symptoms resolve completely after 10 minutes breathing oxygen at 60 feet (18 m) can return to diving after 48 hours of being symptom-free. In uncomplicated pain-only cases, divers who have had a completely normal neurological exam prior to recompression, and whose symptoms took longer than 10 minutes to resolve, are allowed to dive again after a two-week wait. If divers have had cardiorespiratory or neurological symptoms such as weakness or numbness, the Navy recommends a four-week waiting period.
In more complicated DCI cases, in which symptoms seem to resist treatment or in which long treatment tables such as Table 4 or Table 7 are required, the Navy requires a minimum of a three-month layoff from diving. Diving may resume only after a thorough review by a diving medical officer.
In the case of recreational diving, something which is done for fun, most medical authorities recommend much more conservative guidelines than the Navy's. In the case of uncomplicated pain-only bends, rather than only two to four weeks, a four-week minimum is normally advised (perhaps even more if the diver engaged in multiday repetitive dives). With neurological symptoms, a minimum six-week wait is more the norm. And after severe cases of decompression sickness, medical authorities may advise a minimum six-month hiatus, or perhaps even to give up diving altogether. So, the short answer is, it all depends.


 





Test your knowledge of the information featured in this month's issue of Dive Training.

1. Divers can help snorkelers better respect the marine environment by telling them:
A. That coral is a living animal - not a rock - and covered with a very thin and delicate veneer of tissue that is easily destroyed by a mere touch.
B. How to properly adjust their mask and snorkel.
C. To never stand on coral.
D. To never use their arms to snorkel.
E. All of the above.

2. Subtidal, intertidal and supratidal comprise the three zones of a:
A. Coral reef
B. Rain forest
C. Mangrove forest
D. Sherwood forest

3. The nation's roughly 2,500 public safety dive teams generally come in which forms:
A. A dive team associated with law enforcement agencies, whose main mission is more aligned with underwater investigation, underwater crime scenes and underwater searches.
B. A dive team that is part of a fire department, whose mission is more often related to search-and-rescue operations.
C. A dive team that trains on its own, without certified credentials, and operates without the consent of local law enforcement authorities.
D. A & B are correct.

4. The equalization skill that involves pinching the nostrils closed while using the diaphragm to gently force air through the nose is called:
A. The Valsalva maneuver
B. Pinch and blow
C. The Heimlich maneuver
D. A & B are correct.

5. The only National World Heritage Site in the eastern Caribbean is located on:
A. Grenada
B. Guadeloupe
C. Dominica
D. St. Lucia

6. In the 3-1-1 rule, the "3" stands for a 3-ounce bottle or less, the first "1" is for one quart-sized, clear, plastic, zip-top bag; and the second "1" is for one bag per passenger placed in the screening bin.
A. True
B. False

7. The bodies of oceanic whitetips are dark gray on top with near-white undersides, a form of camouflage that helps oceanics blend with the water of the open sea. The pattern is called:
A. Ocean greening
B. Countershading
C. Bleaching

8. On land the most common procedure for donning the scuba unit, in which one buddy balances the other's tank on his upper thigh and holds open the jacket as his buddy slides into the buoyancy compensator (BC), is the:
A. Buddy lift
B. Gentleman's favor
C. Switch out

Answers: 1. E 2. C 3. D 4. D. 5. C 6. A 7. B 8. A