The Great Blue Hole is a large sink or "blue hole" off the coast of Belize. It is located near the center of Lighthouse Reef, a small atoll located 100 kilometers from the mainland coast and Belize City.
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The Great Blue Hole is a large sink or "blue hole" off the coast of Belize. It is located near the center of Lighthouse Reef, a small atoll located 100 kilometers from the mainland coast and Belize City.