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The Great Blue Hole, located near Ambergris Caye, Belize Dean's Blue Hole, Long Island, Bahamas Watling's Blue Hole, San Salvador Island, Bahamas. A blue hole is a large marine cavern or sinkhole, which is open to the surface and has developed in a bank or island composed of a carbonate bedrock (limestone or coral reef).
The Great Blue Hole is near the center of the photograph. The Great Blue Hole is a large marine sinkhole off the coast of Belize. It lies near the center of Lighthouse Reef, a small atoll 70 km (43 mi) from the mainland and Belize City. The hole is circular in shape, 318 m (1,043 ft) across and 124 m (407 ft) deep.
Its name means deep water in the Mayan language and, at over 420 metres (1,380 ft) deep, it is the deepest known blue hole. [1] Blue holes generate a distinctive blue color when seen from above and are typically only a few dozen meters deep. It was discovered in about 2003 by a local diver who followed a grouper that went into its mouth. The ...
Known as Dean’s Blue Hole, this geological wonder located off the coast of Long Island is a staggering 663 feet deep, making it one of the deepest blue holes in the world and also an area ripe ...
This subterranean formation could potentially even offer a portal to both space and time like a subaquatic black hole. In 2012, scientists exploring blue holes in the Bahamas discovered bacteria ...
Blue holes may also be formed after a disruption in the surface of the ocean floor by tectonic shifts that result in the settlement of sand and debris (Emery, 1962). The Blue Hole in Belize was once a dry land cave; its present form is a result of sea level rise and subsequent roof collapse.
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Chetumal Bay contains several blue holes, most notably the Taam Ja' Blue Hole. With a depth of at least 420 metres (1,380 ft), it is the world deepest known blue hole. With a depth of at least 420 metres (1,380 ft), it is the world deepest known blue hole.