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

While the Great Blue Hole has silently recorded history for thousands of years, its latest revelations are a loud warning.

Narrator: There's a massive underwater sinkhole off the coast of Belize that extends ... and the cave flooded and collapsed, leaving behind the Blue Hole we see today. Researchers think that ...

The scientists from Goethe University in Frankfurt removed the 98ft (30m) sediment core from the underwater cave in ... from the Great Blue Hole, a marine sinkhole offshore Belize, provides ...

Belize's Great Blue Hole is one of Earth's most mysterious ... While the Great Blue Hole is open on the surface, it features an extensive cave system that requires a lot of diving skill to ...

A 30-meter sediment core from Belize's Great Blue Hole reveals 5,700 years of hurricane history, showing a sharp rise in storm activity.

Declared a UNESCO World Heritage Site in 1996 – along with six other areas surrounding Belize's barrier reef – the Great Blue Hole remains ... years ago after a cave roof crumbled in, this ...

Researchers have described how tropical cyclones in the Caribbean could become more frequent after analyzing sediment from ...

Tropical storms have been steadily increasing in frequency over the past 5,700 years, new evidence from sediment in the Great ...

A sample drilled from the bottom of the Great Blue Hole has uncovered 5,700 years of history. The underwater sinkhole, ...

While many opt to see the natural wonder from the sky, if you have more time you can take a boat excursion to the Great Blue ...

located 80 kilometers off the coast of the small Central American country of Belize, the seabed suddenly drops steeply. Resembling a dark blue eye surrounded by coral reefs, the “Great Blue Hole” is a ...