Pictured from left to right clockwise: Athletes Anson Henry, Kareem Streete-Thompson (Cayman Islands), Tim Montgomery, Marion Jones and PADI diving instructor David Koenigsberg of Red Sail Sports.Related ...

#2 He keeps saying, "Nice bottom... uh, time."Ken Carter of New York, N.Y.

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Exhale slowly. The air in your lungs expands as you ascend, and it's not uncommon to exhale all the way up and reach the surface feeling you have more air in your lungs than when you began the ascent. You're a good diver. You could be ...

#4 Ken would have to investigate all of Bill's past buddies.

We all know the rule: "Look, Don't Touch." But just in case...

Scuba Lab tested 13 jacket-style BCs and found that sometimes less really is more.

Measuring dive time, depth and air supply, it uses a reliable, time-proven algorithm to calculate and display remaining dive time based on established limits for nitrogen tension, oxygen exposure or cylinder pressure.

Our test divers kicked the living hell out of 18 open-heel fins on Cozumel's current-washed reefs. See which fins are still standing when the results are tallied.