Darwin's Arch loses its top due to erosion in Galapagos Associated Press Text size Copy shortlink: Ecuador's Environment Ministry reported the collapse on its Facebook page on Monday. The rock structure — 43 meters (141 feet) high, 70 meters (230 feet) long and 23 meters (75feet) wide — is less than 1 kilometer (about half a mile) from Darwin Island and it's a popular spot for scuba divers. It's not accessible by land. "Obviously all the people from the Galapagos felt nostalgic because it's something we're familiar with since childhood, and to know that it has changed was a bit of a shock," said Washington Tapia, director of conservation at Galapagos Conservancy. "However, from a scientific point of view, it's part of the natural process. The fall is surely due to exogenous processes such as weathering and erosion which are things that normally happen on our planet."