2The Great Blue Hole, Belize

Next up is a marine sinkhole located in the Lighthouse Reef of Belize. This hole – called “The Great Blue Hole” – formed after a series of glacial and interglacial periods that started over two and a half million years ago and is still happening. During these periods, ice sheets appear, expanding and contracting.

This area is part of the Belize Barrier Reef Reserve System, which is a World Heritage Site of the United Nations Educational, Scientific and Cultural Organization. In short, this very blue, very round hole is almost too gorgeous!

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