10The Great Blue Hole, Belize
The famous Great Blue Hole is a distinctive natural marine sinkhole found off the coast of beautiful Belize. The Great Blue Hole is named for the beautiful shades of blue created by the immediate change of the water’s depth. The hole is 124 meters deep and 318 meters wide. It is a renowned destination for scuba diving. Due to the hole’s microclimate, marine experts and other scientists have learned a lot about what goes on in the deepest water on earth.