Pu'u O Mahuka Heiau

https://www.to-hawaii.com/oahu/ancientsites/puuomahukaheiau.php Puʻu o Mahuka Heiau is the largest heiau in Oahu. It spans over two acres in Pupukea. The high priest of Kamehameha I performed religious ceremonies here, and it was active until Hawaii’s traditional religious system was abolished in 1819. Remove Details from Google Maps 59-818 Kamehameha Hwy #96712, Haleiwa, HI 96712 dlnr.hawaii.gov +1 808-587-0300