Seen from an airplane or a passing satellite, the Great Blue Hole looks like a near-perfect dark circle stamped into the bright turquoise shallows off the coast of Belize. Ringed by the pale coral of ...

At Lighthouse Reef off Belize, Great Blue Hole interrupts the shallow coral lagoon with a single deep marine sinkhole. Its near-perfect circle tells a geological story still visible beneath the waves.

Great Blue Hole in Lighthouse Reef, Belize, is a vast circular marine sinkhole within the Belize Barrier Reef Reserve System. Its scale reshapes the surrounding lagoon. Bauhaus-Poster als geometrische ...

This photograph, taken by an International Space Station astronaut while in orbit over the Caribbean Sea, captures one of Earth’s most alluring ocean locations. The Great Blue Hole lies near the ...