Discover everything you need to know about visiting and swimming in the underwater caves in Mexico — including a list of the ...

This claustrophobia-inducing image is taken from photographer Martin Broen's new book Light in the Underworld, a collection ...

Documentary maker Nays Baghai learnt cave diving so he could film pioneer diver Jill Heinerth in some of the world's deepest ...

Unusual tusks on preserved skulls of dicynodonts influenced the look of a mythical beast painted by Southern Africa’s San people, a researcher suspects.

"It broke into an underwater room – a big domed room similar to the one we climbed through to get into the cave in the first place." Like many diving sites in the region, Mr Lewis said the water ...

CARLSBAD, N.M. – A Cheetos snack bag left behind in a cave at New Mexico's Carlsbad Caverns National Park led to park officials condemning the seemingly innocuous litter for instead disrupting ...

Lava caves, formed from cooled lava flows underground, are found near shield, basalt volcanoes across Earth. These lava tubes ...

The Yucatan Peninsula in Mexico is a treasure trove of natural wonders, among which the underground rivers or cenotes stand out. These natural sinkholes, formed by the collapse of limestone bedrock, ...

After a visitor dropped the snack in Carlsbad Caverns, the “foreign detritus” sparked mold and microbial growth that disturbed the delicate ecosystem, the park said.

Icelandic police on Monday called off the search for anyone trapped in the previous day’s collapse of an ice cave that killed one person and injured another, saying that all members of the ...

Reykjavik, Iceland — One U.S. tourist was killed and another seriously injured when part of an ice cave collapsed in southeast Iceland as their tour group visited the area, police said Monday.