The Great Blue Hole, located off the coast of Belize, has long fascinated scientists ... rock formations hanging from the ceiling of the cave. This finding suggests that the Great Blue Hole ...

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 ...

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 ...

The Great Blue Hole is a giant marine sinkhole that ... Why It’s Unique: Cave tubing in Belize is a must-do adventure for thrill-seekers. At Caves Branch, visitors float down the river through ...