Professional diver Andrew Ryzebol tells PEOPLE exclusively of his risky underwater explorations 200 feet beneath uncharted ice with nothing but a mask and fins ...

The Bajau tribe of Indonesia can dive over 200 feet without oxygen tanks—thanks to a rare genetic mutation that enlarges their spleens and turns them into real-life sea nomads.

The area is popular among free divers, who plunge deep into open water without a scuba tank, hitting depths that would make a ...