The Great Blue Hole, off the coast of Belize. Photograph: © SAF — Coastal Care
Belize’s Lighthouse Reef Atoll is the home of the world-famous Great Blue Hole, a massive underwater sinkhole circular in shape, over 300 metres (984 ft.) across and 125 metres (410 ft.) deep. The Great Blue Hole is part of the larger Barrier Reef Reserve System, a World Heritage Site of the United Nations Educational, Scientific and Cultural Organization (UNESCO).
A new exploration of a legendary blue hole in the South China Sea has found that the underwater feature is the deepest known on Earth.
Dragon Hole, or Longdong, is 987 feet (300.89 meters) deep, far deeper than the previous record holder, Dean’s Blue Hole in the Bahamas…