The three cabins are maintained by the National Park Service for visitor use by advanced reservation. The Wilderness cabins are accessible only by trail. To reach the cabins, you must hike a minimum of 3.7 miles (5.9km) to Hōlua, 5.5 miles (8.9km) to Kapalaoa, and 9.3 miles (15km) to Palikū. Requesting a Cabin: