We're in Long Island, Bahamas and visited what is touted to be the deepest Blue Hole in the World at 600+ feet. It's rather unusual in that you can wade out to it in knee deep water and then...WOW! International freediving competitions are held here each years. It's amazing to watch and meet these young kids from all over the world. Did I mention without an ounce of body fat? We watched a young fellow, wearing a single flipper that both of his feet were in (think of a mermaid tail) freedive to 135 meters! Very impressive!