The Great Blue Hole is a giant marine sinkhole off the coast of Belize. It lies near the center of Lighthouse Reef, a small atoll in Belize City. The hole is circular in shape, 318 m (1,043 ft) across and 124 m (407 ft) deep. The site was made famous by Jacques Cousteau, who declared it one of the top five scuba diving sites in the world. The Great Blue Hole is a popular spot among recreational scuba divers who are lured by the opportunity to dive in sometimes crystal-clear water and meet several species of fish, including midnight parrotfish, Caribbean reef shark, and other juvenile fish species.
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