Rescue divers search an underwater cave for the missing explorers in Baise, South China's Guangxi Zhuang autonomous region. [Photo/CCTV News] Two members of a scientific research team trapped in ...

Archaeological surveys led by scientists at Washington University in St. Louis suggest that coastal and underwater cave sites ...

A group of divers have connected two underwater caverns in eastern Mexico to reveal what is believed to be the biggest flooded cave on the planet, a discovery that could help shed new light on the ...

The Canary Islands not only boast the third largest volcano in the world, but also the largest natural underwater lava tunnel ... and a blend of dry and submerged cave sections.