It's called the Great Blue Hole. Scuba divers and snorkelers have been cruising the surface waters for decades, but few have dared to venture deeper and explore what lies beyond the blackness.

Here’s what you need to know before visiting the Great Blue Hole. Like a pinprick piercing the azure Caribbean Sea, the Great Blue Hole is as mysterious as it is mesmerizing. From above ...

Drone image from 200 meters height above the “Great Blue Hole,” showing the drilling platform anchored in the center. Visible in the background is the edge of the Lighthouse Reef Atoll.

This finding suggests that the Great Blue Hole was once a dry cave that formed around 14,000 years ago. It was later flooded and collapsed after the Ice Age ended when sea levels on Earth rose ...

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.

A storm, even once it has passed, can leave traces in the ocean that last for thousands of years. These consist of sediment layers composed of coarse particles, which are different from the finer ...

Like a pinprick piercing the azure Caribbean Sea, the Great Blue Hole is as mysterious as it is mesmerizing. From above, this almost perfectly circular underwater sinkhole is a deep, dark bullseye ...