This spur trail leads towards the Lava Flow of 1926 and deposits hikers at the base of an old Ōhiʻa tree. Ōhiʻa trees are native to Hawai'i and form an important part of Hawai'ian history and culture. Its famous flowers come in shades of white, yellow, and red. The Ōhiʻa tree is a keystone species in Hawai'ian rainforests, and has evolved remarkable adaptations to thrive in harsh volcanic conditions amongst sulfuric gasses. Recently Ōhiʻa trees have been in danger from fungal diseases termed Rapid Ōhiʻa Death (R.O.D.). This is why visitors are asked to disinfect their boots before entering the northern region of the Kahuku Unit.