Dean's Blue Hole is a blue hole located in The Bahamas in a bay west of Clarence Town on Long Island and is the world's second deepest, after the Dragon Hole in the South China Sea, with a depth of 202 metres (663 ft).[1]

This article includes a list of general references, but it lacks sufficient corresponding inline citations. (June 2016)

Dean's Blue Hole
Dean's Blue Hole
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Location	Clarence Town, Long Island,  Bahamas
Coordinates	23°6′23″N 75°0′31″W
Depth	202 metres (663 ft)[1]
Geology	Blue hole

Formation

A blue hole is a water-filled sinkhole with the entrance below the water level. They can be formed in different karst processes, for example, by rainwater soaking through fractures of limestone bedrock onto the watertable. Sea level here has changed: for example, during the glacial age during the Pleistocene epoch (ice age), some 15,000 years ago, sea level was considerably lower.

Dean's Blue Hole is roughly circular at the surface, with a diameter ranging from 25 to 35 metres (82–115 ft). After descending 20 metres (66 ft), the hole widens considerably into a cavern with a diameter of 100 metres (330 ft).

References

External links

• Dean's Blue Hole