THE COVERS Articles & Editorials APRIL 2003 • Volume 13 Number 4 
  
By Ian And Karen Stewart
It's been six years since the sinking of the Keith Tibbetts in the waters off Cayman Brac. The authors of this month's article, "An Artificial Reef Examined: The Changing Face of a Sunken Ship," offer insight into the changes an artificial reef experiences over time.
FEATURES
30 Expiring C-Cards: A Good Idea or Needless Obstacle? Once you become a certified diver, you're certified for life. But should you be? The author examines the debate over whether c-cards should expire - and what, if anything should be required to keep them current. By Alex Brylske
40 Cavern Diving: A Beginner's Guide. Cavern diving is increasing in popularity among recreational divers and technical divers alike. This article defines cavern-diving basics and offers an introduction to the cavern-diving specialty. By David Prichard And Cathryn Castle
50 Don't Press the Panic Button: Lessons in Mindful Diving. Panic is thought to be a significant contributor to diving accidents, and has been implicated in numerous diving fatalities. As safety-conscious divers, we owe it to ourselves to become familiar with the nature and causes of panic, and to develop techniques for avoiding it. By Robert N. Rossier
COMMENTARY
8 Editorial: Are You Too Big for Your Britches? By Alex Brylske
10 Buddy Lines: One Fantastic Journey  
18 Dive Observer:
Divers Help Search for Shuttle Debris and other news from the diving industry
By Gene Gentrup
99 No Dumb Questions:
Common Myths and Misconceptions. Questions from our readers.
By Alex Brylske
DIVE EXPLORATION
74 Global Dive Exploration Map
A geographical guide to great dive destinations across the globe
 
76 Dive Geo: Remote Location, Riveting Diving: Cocos Island, Costa Rica
It's a long way from the mainland but worth the trip
By Henry C. Powers
85 Dive Traveler: The Portable Family:
Scuba Vacations with Kids. You don't have to stay home til they're grown
By Staci Meyer
89 Diving USA: Dive travel opportunities across America  
90 Passport/Travel Briefings: Dive travel deals and updates from all over
Compiled By Gene Gentrup
 
EVERY MONTH
59 Scuba Skills: Rinsing a Regulator...
Thoroughly. How to care for your life-support system
By Linda Lee Walden
63 Instructor Tips: Catching Flies with Honey:
The Power of Positive Reinforcement. How to positively better your students' performance.
By Linda Lee Walden
69 Always Learning: The Natural:
When Scuba Diving is Second Nature. A look at scuba talent as a gift.
By Mark Twombly
92 Dive Shop
Compiled By Cathryn Castle
 
94 What About: An Artificial Reef Examined:
The Keith Tibbetts observed over time
By Karen And Ian Stewart
103 What's That?: Dolphin Encounters:
A Diver's Dream. Swimming with our favorite cetaceans
By Marty Snyderman
107 Premier Classifieds  
109 Dive Training Classifieds  
113 Dive Training Quiz: Test your knowledge of the information in this month's issue  
114 Final Check: What It Looks Like When...
You Pay Attention. Why it's important to listen up before you go down
By Linda Lee Walden