Natural erosion finally took its toll on Darwin's Arch, a famous rock formation off the coast of the remote Galápagos Islands, forcing the top of the archway to collapse into the Pacific Ocean on ...

PORTLAND, Ore. (KOIN) — The pair of massive sinkholes that continue to swallow up the popular lookout at Cape Kiwanda State Natural Area may one day form a new sea stack, a report recently completed ...

HONOLULU (KHON2) – Hawaii Volcano National Park announced last weekend’s big surf took a toll on Holei Sea Arch. Holei Sea Arch is a 90-foot tall lava rock formation on the coast in Hawaii Volcanoes ...

The remnants of the sea arch in Tettegouche State Park in 2010. The pillar of rocks that once made up part of the arch collapsed into Lake Superior during the weekend's winter storm. (Minnesota DNR ...

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 ...

Darwin’s Arch, a rock formation south-east of Darwin Island in the Galápagos archipelago, which lies 600 miles (1,000 km) off South America in the Pacific Ocean, has collapsed due to natural erosion, ...

The 90-foot-tall Hōlei Sea Arch in Hawaii Volcanoes National Park lost a key part of its base on earlier this week and is now at risk of collapse, the park says National Park Service/J.Wei photos One ...

A stretch of rugged coastline on Anglesey offers some of the finest clifftop walks in Wales - the views are spectacular, the sea air bracing. But for some, it’s below where the real magic lies. Here, ...