An excellent diving site, this incredible duo of caves is a favorite of both tourists and locals alike. The two caves—known as Cenote Dos Ojos—were created by two 70-foot sinkholes connected by a ...

Larry Mayer is headed out this week on a ship to explore the Channel Islands off the Southern California coast. Well, he’s actually exploring seafloor formations near the islands, looking for evidence ...

Aug. 30 (UPI) --Scientists have discovered ancient deposits in the Artà Cave on the island of Mallorca that suggest sea levels 3.5 to 4 million years ago were more than 50 feet higher than they are ...

Beneath the United States lies a surprising network of caves shaped over millions of years. Some feel almost otherworldly, with strange rock formations and the occasional glow from naturally occurring ...

It's been a year since the dramatic rescue of the 12 members of the junior football team and their coach from the Tham Luang Nang Non cave in Chiang Rai Province, Thailand. The rescue put a spotlight ...

Researchers have suggested that the Gulf Stream, a major Atlantic current with wide-ranging effects on climate may have shifted centuries ago based on testing of a stalagmite in Leamington Caves. A ...

Just three years ago, a group of Idaho men traveled to an unnamed Western state and in an unnamed range of rugged mountains, hiked up a steep trail. At the top, they unraveled climbing ropes, stepped ...

Most people come to Pictured Rocks National Lakeshore in Michigan’s Upper Peninsula for its namesake — the colorful, mineral-stained sandstone cliffs that line mighty Lake Superior. Those cliffs are ...

People are falling in love with a "magical" Welsh sea cave that offers incredible views and is surrounded by mystery. It's a ...