Exploring a cave system requires specialized scuba diving lessons — and for good reason. Learn from the mistakes this diver made. It could save your life.

Learn what not to do in an underwater emergency in this Lessons For Life: A diver forgets his training with fatal consequences.

A diver panics and forgets her training after encountering a shark during her dive, and her reaction leads to serious injury.

No photo or footage is worth losing your life. Learn how to take essential precautions when diving.

Pressure leads to panic when failure to equalize causes diver to make fatal mistakes.

A diver thought he was feeling great on his dive, but he did not realize the trouble he was getting himself into. See what mistakes he made, and what you can do to avoid getting bent.

A one-hit wonder suffers fatal consequences from his habit. See how one diver didn't surface because he thought it was OK to get stoned before a cave dive.

Seven scuba divers enter the water for a wreck dive, but only six returned alive. Learn how to stay safe and avoid dive accidents in this latest installment of Lessons for Life.

There’s nothing underwater worth risking your life — whether it’s money, jewelry or a cellphone.