Viewpoints of geologic and scenic interest along Wailuku River. Boiling Pots is a succession of big pools connected by underground flow or cascades and whose waters roll and bubble as if boiling. The exposed hexagonal columns that line the pools were formed by the slow cooling of basalt lava. The 80-foot Rainbow Falls is renowned for the rainbow formed from its mist many mornings. Legends say that the cave beneath the waterfall was the home of Hina, mother of the demigod Maui.
Restrooms
Trash cans
Drinking water
The falls was not so large when we went but there was still a slight rainbow in the water. The rainbow could not get caught in the picture but it was still nice to see. The observation area was nice and the kids can see from here but it is nothing more than a pit stop. The real adventure is walking behind the the main flow of the river. I recomend only going with older teenaged children to do this part as it can get slippery - I actually fell but it was worth it!