Scientists have expressed concern after one of the world's most unusual natural sites has uncovered a "concerning secret".

The Great Blue Hole is located about 60 miles off the coast of Belize along the Lighthouse ... Snorkel and Island Experience at Laughing Bird Caye National Park (71 reviews) ...

Narrator: There's a massive underwater sinkhole off the coast of Belize that extends 125 meters into the Earth's crust. It's called the Great Blue Hole. Scuba divers and snorkelers have been ...

‘A 30m-long sediment core from the Great Blue Hole, a marine sinkhole offshore Belize, provides the longest available, continuous, and annually resolved tropical cyclone frequency record.