When the sun sets, the ocean comes alive with a whole new world of marine life. Here's what you can expect—and how to prepare ...

Knowing your gear like the back of your hand keeps both you and the ocean's wildlife safe during your dive. Generally ... strategic breathing techniques. Without mastering this skill, you may ...

Get to know the "absolutely astonishing" true story behind the new movie "Last Breath," which chronicles a 2012 deep-sea diving accident.