DAN's annual report on dive accidents highlights four factors common to fatal accidents. The good news: They're all preventable. Our dive-training tips.

See what scuba diving lessons we can learn from this fatal accident: an inexperienced, out-of-shape diver dies close to shore.

One scuba diver pushes his limits on a liveaboard trip and suffers from decompression illness as a result.

Being unprepared for wreck penetration spells disaster for a showoff dive instructor.

An experienced lobster diver ignores the basics and pays the price.

A scuba diver gets a leg cramp and is then swept away by the current while their buddy is focused on taking photos.

Nitrogen narcosis is no laughing matter for two divers trying to set a personal depth record. Get our lessons for life.

Three buddies push their training and venture deep into a cave; only two make it out. Get our lessons for life.

A new diver runs out of air at the safety stop and forgets her training. Learn from this panicked diver.