Hawai‘i Volcanoes National Park protects a changing landscape. This is true from the eruptive developments at Kīlauea Caldera all the way down to the ocean erosion at Hōlei Sea Arch. How much longer will this 90-foot tall bridge of basalt withstand the surf? Take a short walk - 100 yards each way - to Hōlei Sea Arch and see it while you can! Hōlei Sea Arch is 22 scenic miles from... Read more.