With its year-round sun and excellent visibility, the waters of the Caribbean offer some of the best scuba diving in the ...

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 ...

A mile and a half beneath the ocean’s surface, the seafloor seems nearly as alien as the surfaces of other planets. Deep-sea volcanic ridges, formed by the collisions of tectonic plates, create ...

The underwater caves of the Yucatán Peninsula are a window to the distant past. Through two million years and over multiple glaciation cycles, these caves have been transformed. When the sea level was ...

Drought conditions have revealed an underwater cave at Canyon Lake in Texas, photos show. Screengrab from Facebook post by Paul Sullivan. An underwater cavern revealed by drought is drawing visitors ...

Water levels are so low at Canyon Lake in Texas that an underwater cave and remnants of communities that stood more than a century ago at the site are reappearing. The lake, located in Comal County ...

Scientists found a “golden” sea creature “deep within” underwater caves off Saudi Arabia and discovered a new species, a study said. Photo from Getty / iStockphoto On a coral reef off the western ...

Researchers working in North Africa rediscovered a depigmented subterranean crustacean that was first recorded 100 years ago. According to the Libya Observer, a team of scientists from the University ...