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 ...

Sea arches form from caves hollowed out by waves, Leversedge said. Waves from two directions open the cave into an arch. Eventually, the combination of waves, freeze and thaw cycles and erosion bring ...

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, ...

Wisconsin offers some of the most breathtaking and adventurous kayaking caves and opportunities in the United States. With an ...

Column: Risk, reward in visiting the frozen Apostle Islands sea caves (with video) CORNUCOPIA -- An occasional deep rumble rises from beneath frozen Lake Superior. The wind rustles through vegetation ...

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 ...

A rugged stretch of coastline on Anglesey boasts some of the best clifftop walks in Wales - the views are breathtaking, and the sea air invigorating. However, for some, the true allure lies beneath.