Off the coast of Belize, lies one of the most famous diving spots in the world – the Great Blue Hole, the world’s largest known underwater sinkhole. Surrounded by the Lighthouse Reef atoll, the Great Blue Hole is famous for its rich, blue water, stretches over 300m (984ft) across with a depth of 125m (410ft).

The Great Blue Hole was made famous by Jacques Cousteau in 1971, when the ocean explorer declared it one of the best diving spots in the world. Today, the underwater sinkhole continues to attract divers around the world who flock to see the amazing geological formations of stalactites and stalagmites in the vertical cave. Divers also encounter many species of fish in the crystal clear water including giant groupers, nurse sharks, Caribbean reef sharks and Blacktip sharks.

The Great Blue Hole is a World Heritage Site of the United Nations Educational, Scientific and Cultural Organization.