Analysis of the sediment in Belize’s Great Blue Hole shows a concerning trend. Blue holes, the name for collapsed limestone ...

Multi-million pound plans to reopen limestone caverns beneath Dudley, bringing in 500,000 visitors every year, could be back on the agenda after being raised in Parliament.

Deep in the tropical forests of Grand Cayman lies a unique excursion: the Cayman Crystal Caves. These limestone caverns host a plethora of beautiful mineral formations, and tours allow you to ...

Mineral deposits in limestone caves show that the now arid interior of Saudi Arabia repeatedly experienced increased rainfall ...

Most people think of visiting big cities, national parks, and beaches when they plan a U.S. trip. There’s hardly anyone who’s ...

Discovered in 1878, Luray Caverns has been drawing visitors for over a century—and it's easy to see why. Located just west of ...

Carlsbad Caverns National Park is a limestone show cave with the fifth-largest chamber in North America. Located in southern ...

Deep beneath the Chihuahuan Desert in southern New Mexico is a labyrinth of more than 300 limestone caves, carved over 250 million years ago. The park also preserves biologically diverse desert lands ...

Lower Kane has none of the sparkling columns or limestone “draperies” of subterranean tourist spots such as New Mexico’s Carlsbad Caverns or Kentucky’s MammothCave. Scarcely larger than a ...

We're getting a look at Kartchner Caverns State Park in southeastern Arizona. The park is renowned for its extensive ...

This national park — which sits about 5 miles east of the Zona Colonial and is best reached by taxi — houses three limestone caverns, each of which features a lake. (Just keep in mind ...