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

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 Swimming
Source: Mashable | Adam Stern is a freediver, he can swim up to 300 feet underwater on a single breath