The Great Blue Hole is a giant underwater sinkhole found off the coast of Belize. The hole was formed after a limestone cave system collapsed thousands of years ago creating a hole 300 meters wide and 124 meters deep.
The Great Blue Hole is surrounded by a coral reef and can be accessed through two channels. The reef itself is a good place for snorkelers since it is only a few feet deep. Here one can see:
Club finger corals
The Great Blue Hole is only for exper …