GoKawiilHawaii Volcanoes National Park's 8-mile Great Crack remains largely unexplored by staff
Hawaii Volcanoes National Park contains an 8-mile fissure known as the Great Crack, located in Kilauea's southwest rift zone, which measures up to 50 feet wide and 66 feet deep. A writer attempting to hike to the site found that multiple park employees and rangers had never visited it themselves, with no official trail leading there and little documentation available.