Take a Dive Into the World’s Deepest Inland Saltwater Cave

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If ordinary swimming is too dull for you, consider freediving. It’s the act of swimming in deeper water without the aid of a snorkel or other mechanical breathing device. Freediver champion Guillaume Nery takes this hobby to the next level in this documentary video of him diving into the depths of Dean’s Blue Hole in the Bahamas.

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Dean’s Blue Hole is the deepest known ocean blue hole at 663 feet deep. It seems like a risky move, even for an experienced freediver like Nery. Would you take the plunge?

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