A team including Virgin billionaire Richard Branson has returned from the bottom of Belize’s Great Blue Hole with exciting findings. Learn what’s down below 400 feet of Caribbean Sea.

Located roughly 40 miles off the Belize coast, the Blue Hole is thought to have once been a giant cave on dry land, thousands of years ago. As the ocean rose again, the cave flooded.

From beaches and mangrove swamps to rainforests and mountains, Belize is known for its biodiversity. Ancient Mayan archeological sites, remote islands, waterfalls, and the world's second largest ...

A key outcome of the Expedition is creation of a complete 3D sonar map of the Blue Hole. The sonar map is enhanced with other passive submarine-collected environmental data. Once processed and ...

The Great Blue Hole in Belize is the largest sinkhole in the world ... In 1971, underwater explorer Jacques Cousteau put the Blue Hole on the map when he first explored its depths.