Long Island

The Bahamas

This is the world's deepest blue hole at 663' and is situated in a scenic location on an attractive and reef-protected cove with a white sand beach.  The blue hole is immediately off the beach and half surrounded by overgrown beachrock cliffs.  It is the location of the establishment of a new world's freediving record in April, 2007.  At the surface the blue hole  is about 200' in diameter.  It funnels down into a narrower throat about 100' in diameter, opening again with increasing depth (~100) to resemble a bottle of Lancers in profile.  Exotic non-native lionfish have been observed frequently in the blue hole environs.  Nearby coves also provide Atlantic Ocean side reef/cove diving opportunities.  Attached Blue Hole Cove has a scenic arcuate beach and is about half a mile long with a shallow fronting reef.  Adjacent Turtle Cove provides a fronting forereef and backreef experience, a deeper channel through the reef and an interesting coral garden, starting just off the beach on the north half of the more than mile long cove.  See http://en.wikipedia.org/wiki/Dean%27s_Blue_Hole

One mile long, partially paved road over beachrock ridge leaves Queen's Highway to the east (Atlantic side) across from phone booth along highway.  About 4 miles north of Clarence Town, Long Island, Bahamas.  See Google Earth imagery for access details (not that difficult) through sparsely settled subdivision within a half mile of the blue hole.

Deans Blue Hole