Experience a lava landscape from the 1969-1974 Mauna Ulu flow. Walk by lava tree molds and climb 210 feet (64m) to the top of a forested cinder cone, Pu‘u Huluhulu (hairy hill). View Mauna Ulu's steaming shield, which is similar to the now inactive Pu‘u ‘Ō‘ō cone in the distance. On a clear day you can see Mauna Loa, Mauna Kea and the Pacific Ocean.
Protect delicate lava formations. Surface patterns and lava trees are fragile. Reduce your impact. Please do not touch these formations.
Download the Trail Guide (pdf-7.63MB)
Leave rocks in their rightful place.
Park staff may use ahu (stacked rocks) to mark some trails and keep visitors safe. Please do not create new ones. The stacking of rocks can be culturally offensive, disorienting to hikers, and potentially against the law.
Read more about the five year eruption of Mauna Ulu
Last updated: February 23, 2021