July 3, 2016

Great Blue Hole

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The Great Blue Hole is a giant submarine 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, over 300 m (984 ft) across and 124 m (407 ft) deep. It was formed during several episodes of quaternary glaciation when sea levels were much lower. Analysis of stalactites found in the Great Blue Hole shows that formation took place 153,000; 66,000; 60,000; and 15,000 years ago. As the ocean began to rise again, the cave was flooded. The Great Blue Hole is a part of the larger Belize Barrier Reef Reserve System, a World Heritage Site of the United Nations Educational, Scientific and Cultural Organization (UNESCO).

Explanation from: https://en.wikipedia.org/wiki/Great_Blue_Hole


  1. Sorry, but I think that the Blue Hole in Santa Rosa NM is great, and I'm entitled to my opinion.

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  3. I seen a picture of this years ago and actually thought it was on another planet or moon! Right here on Earth! Man, maybe those that don't believe in global warming or not saving this wonderful planet should look at beautiful and amazing parts of our home.........just awesome!!