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 ...

Explore the depths of the Great Blue Hole—one of the most breathtaking, mysterious, and dangerous dive sites on Earth. Sharks ...

A 30m-long sediment core from the Great Blue Hole, a marine sinkhole offshore Belize ... a UNESCO World Heritage Site. 4. The underwater caves of the Blue Hole are filled with giant stalactites ...

They often appear as a dark blue colour due to its depth, creating a distinct visual contrast against the surrounding water ...

In addition to operator fees, be prepared to pay an extra $40 park fee to dive and snorkel at the Great Blue Hole. Apart from being able to descend into the depths of the underwater gem ...