Scientists are delving deep into the belly of the Earth. Who are these cave explorers, what have they found, and what do they ...

(This program is no longer available for streaming.) Follow a fearless team of scientists as they venture into blue holes—underwater caves that formed during the last ice age, when sea level ...

On one dive into a blue hole on Great Abaco Island ... this boa species still lives on the island. The cave swallow (Petrochelidon fulva) is a small, stocky songbird that builds its nest in ...

"Every single day was a challenge for me," Bateman says, adding he had scuba dived before, but had never done cave diving. "I didn't quite realise how it made you feel... I suffer greatly from ...

Turtle Cavern, which is an expert-level cave dive ... sure you get proper training before you arrive. If you're not scuba diving around Sipadan, you can still snorkel and enjoy many of the ...

"Whether scuba diving, cave diving or seeking out shipwrecks, we know how important it is to have the most accurate data at all times. Featuring a big, bright display and 20 ATM dive rating ...