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7 Phenomenal Natural World Wonders

March 25, 2013

Blue Holes

Wikimedia Commons

Great Blue Hole off the coast of Belize.

Blue Holes are caves or underwater sinkholes that are roughly circular, steep depressions. They are so named for the dramatic contrast between the dark blue, deep waters of their depths and the lighter blue of the shallow waters around them.  There several blue holes around the world, and they're typically found in low-lying coastal regions. The best examples are in Belize, the Bahamas, Guam, in the Great Barrier Reef off the coast of Australia, and in the Red Sea in Egypt. Dean's Hole, in a bay west of Clarence Town on Long Island, Bahamas, is the deepest blue hole in the world, at 663 feet deep.


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