Narrator: There's a massive underwater sinkhole off the coast of Belize that extends ... descent to the bottom of the Blue Hole. Their mission was to create a 3D map of the sinkhole's interior ...

Moreover, the Great Blue Hole is just a speck amidst the endlessly rich expanses of the Belize Barrier Reef, second in size only to Australia's Great Barrier Reef, making this legendary dive ...

And so, when Richard Branson and a team of scientists took a submersible down to the bottom of Belize’s iconic Giant Blue Hole ... was to create a 3D map of the hole’s interior but, when ...

After spending almost three weeks exploring the enigmatic Blue Hole of Belize, Vancouver-based submarine company Aquatica Submarines has created the first 3-D sonar map of the 124-metre-deep ...

Declared a UNESCO World Heritage Site in 1996 – along with six other areas surrounding Belize's barrier reef – the Great Blue Hole remains one of the world's most distinguished scuba sites.