The 1,275 acres is a part of an area that once belonged to Hawaiian royalty. Honouliuli, dark or dark harbor for the dark and fertile ‘aina that stretch from Pu‘uloa (Pearl Harbor) to the summit of Wai‘anae Mountains.
Pohakea Pass served as an important access point between ‘Ewa and Wai‘anae and is important in mo‘olelo (Hawaiian oral traditions). The easement is in close proximity to Maunakapu and the chiefly birthing stones at Kukaniloko in Wahiawa. This area was once a biodiverse habitat with more than 200 native plant species, including na‘u (Hawaiian gardenia), and now only three native plants remain: wiliwili, ‘a‘ali‘i, and ‘iliahi. Wildlife such as pueo (short-eared owl), ‘amakihi (Hemignathus virens virens), ‘apapane (Himatione sanguinea), and O‘ahu ‘elepaio (Chasiempis sandwichensis ibidis) may call this area home.
Sweeping, panoramic views of O‘ahu’s central valley can be seen and possible heiau and other cultural sites are thought to be located here. “Sites of Oahu” references the Pu‘uku‘ua heiau which was located “on the ridge overlooking Nanakuli, as well as Honouliuli, at the approximate height of 1,800 feet.”