Located on Highway 132 in East Hawaii and situated in the Nanawale Forest Reserve, this park is a graphic depiction of the long-term effects of lava. Hundreds of years ago a fast-moving flow of hot lava encountered a patch of wet `O`hia trees and forever “molded” the structures, leaving behind vertical, hollow, lava tubes where each tree once stood. Open daily from dawn to dusk, free, 30-60 minute hikes traverse the park. Wear sturdy shoes and walk slowly and carefully as the terrain is very uneven. There are restrooms and picnic tables.
South on Highway 130 out of Pahoa, turn east onto Highway 132. The park is 2.5 miles down this highway on the left.