Danny was having one of the greatest days of his short dive career. Conditions were perfect. Visibility seemed to go on forever. Until the grouper he had just speared knocked his regulator out of his mouth and his mask askew. Suddenly, he was in trouble.

CPR and life support aren't included in basic scuba training — is just learning to dive enough of a challenge for beginners?

The University of Toledo dive team made waves this month when the last member of their team left the 330-gallon “pool” in their Student Union to celebrate as new Guinness World Record holders for the "Longest Continual Dive By a Group of Divers in a Contained Environment."

Stake a claim on the last unknown frontier: It lies just beneath our feet. The wonders of scuba diving in caves.

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The majority of the best dives still require a boat — here are a few quick tips to help you fit right in on board.

Is it OK to touch marine life or feed sharks when diving? Two experts discuss.

Perhaps nothing ruins a dive trip more quickly than motion sickness – but how can you avoid it? What really works when you're seasick on the dive boat?