Adam Stern is a freediver, he can swim up to 300 feet underwater on a single breath
 

Adam Stern is a freediver, he can swim up to 300 feet underwater on a single breath
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Stern's deepest dive was 106 meters on a single breath. Now he's training to become the deepest freediver in the world.*

In the meantime, he spends his underwater days exploring the hidden treasures of the ocean. Read more...

More about Sports, Uk, Mashable Video, Diving, and Swimminghttp://feeds.feedburner.com/~r/Mashable/~4/_Jo52tar7So