Playlist of my Hawaii videos https://www.youtube.com/playlist?list=PL5M50yaye0Q0LMrB6rQ2s6grp4GN8-SmJ
Here's a photo of the remains of the Poli'ahu Heiau, one of several sacred temples in the Wailau area. It's pretty wide which is why I did a panoramic photo. A park sign nearby explained this site was dedicated to a Hawaiian war deity Kū. I'm not familiar with Hawaiian deities or religious ceremonies so here's some links that give better explanations than I could give.