Halona Blowhole

Viewpoint in Koko Head Regional Park

Just watch where all the tour buses are turning off to find this one. Here, ocean waves surge through a submerged tunnel in the rock and spout up through a hole in the ledge. It’s preceded by a gushing sound, created by the air that’s being forced out of the tunnel by rushing water. The action depends on water conditions – sometimes it’s barely discernible, while at other times it’s a real showstopper.

From the parking area, you can hop the fence and walk down to get a closer look at the blowhole and nearby Halona Beach. Just be aware of the surf.