We ventured deep inside a river cave and found a mysterious blue hole. Could it lead to an underground spring, or something even more incredible? Join us as we explore its depths and uncover the ...

Scientists have announced the discovery of what they describe as the world’s deepest blue hole, off the coast of Mexico. Taam Ja’ Blue Hole (TJBH), is located in Chetumal Bay off the Yucatan ...

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.

Inside the hole is a complex system of caves ... Building on the success of the Blue Hole expedition, Aquatica Submarines hopes to bring its innovative submersibles to other international ...