The Great Blue Hole is a large marine sinkhole in the Caribbean Sea, some 70 kilometers (43 miles) from the coast of Belize.
Located off the coast of Belize, the Great Blue Hole is one of the most magnificently gorgeous parts of the planet, but ...
Video: Stalactites, a conch graveyard and toxic chemicals: Incredible discoveries at the bottom of Belize's Great Blue Hole as researchers release the first ever 3D map of the sinkhole Richard ...