Dive Deep: Explore the World’s Largest Blue Hole in Long Island, Bahamas
Long Island stretches for about 80 miles through the southern Bahamas, but most visitors come for a single spot: a near-perfect circle of deep blue water just north of Clarence Town. Dean’s Blue Hole drops to roughly 663 feet, making it one of the deepest known blue holes on the planet. The first recorded dive to the bottom happened in 1992, when cave diver Jim King reached the full depth using back-mounted cylinders — a feat that opened the door for the Bahamas Caves Research Foundation to map the upper-level cave system in the years that followed. Dean’s Blue