We often admonish people not to go for depth as a challenge to scuba ability. Can be dangerous and foolhardy.

The air on your back can even turn and hurt you without real training to handle yourself in extreme situations.

But what about no air on your back at all--the kind of stuff freedivers do on a regular basis?

Learn more at

WANT TO BREAK THE FREEDIVING WORLD RECORD? HERE’S HOW DEEP YOU HAVE TO GO