This unnamed historic site is located right on Ulehawa Beach Park on Oahu's leeward coast, along Farrington Highway. Ancient Hawaiian settlements used to be located along all Hawaiian shorelines, but what makes this one special is that it has been preserved. Not many such ancient ruins remain on Oahu's shoreline. A plaque at this site says:
Historic Site 50-80-07-5763
Ulehawa, Lualualei, Waianae Moku
Beneath your feet are the remains of traditional Hawaiian settlement dating to A.D. 1500 to 1800. This site has been preserved by the City and County of Honolulu for future research and educational purposes. Few such coastal sites survive along this part of the Waianae shoreline, so please kokua and do not disturb this cultural resource.