When seen from above, the Great Blue Hole looks like the pupil of an eye. Seen from within, this Unesco World Heritage–listed ocean sinkhole is a visual treat for divers. Ringed by fringing reef, and approximately 400m in diameter, the Great Blue Hole drops away to around 145m. About 40m down are the formations that lure divers from around the world: marine stalactites up to 15m in length. Marine life is noticeable only in its absence – you might not see a single fish – but ...
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The Great Blue Hole of Belize
The Great Blue Hole is located off the coast of Belize; it is found in the middle of the Lighthouse Reef ecosystem. The Great Blue Hole is a underwater sinkhole that measures 984 feet (300 m) across. The sink hole plunges 394 feet (120 m) deep and provides divers with a crystal clear haven for exploring this underwater wonder.
The Great Blue Hole by the livingmoon. Photo by David Doubilet: Located off the coast of Belize, the almost perfectly circular Great Blue Hole is a sinkhole which measures more than 300m across and 120m deep and is believed to have been formed as a limestone cave system during the last ice age when sea levels were much lower. As the ocean began to rise again the caves flooded, and the roof collapsed. #Great_Blue_Hole #Sinkhole