At high tide, it looks like the Pacific Ocean is draining into a circular hole in the middle of Cape Perpetua, just south of Yachats, Oregon. While its dramatic appearance has earned it nicknames ...

Spelunking, or cave exploring, is an adventure of a lifetime for those who wish to discover the hidden wonders beneath the earth's surface. While most may think of famous caves in faraway lands, there ...

The Southern Ocean, which circles the globe without being blocked by land, is home to the Antarctic Circumpolar Current (ACC), the longest of the world's ocean currents. Also known as the "channel ...

Over 300 million years ago, in the Carbiniferous period, Fermanagh was covered by a shallow, tropical ocean. Millions of shells of tiny sea creatures fell to the ocean floor after death.