I dug the place. As soon as we pulled into the parking lot, I ran past all the warning signs down the super short path directly onto the lava rock. Every few minutes the waves will crash on through the sea tunnels, and each time you would hear the belching sounds coming from the two water holes. Interspersed between these moments would be a nice and impressive gush of water would blast through the smaller blowhole.

Certainly gets your attention more than "just another random beach along the shore." :)

Btw, don't be an idiot. Don't stand between the hole and the sea. They mean it when they say there are sudden surges. I don't know where those buggers come from, but suddenly there will be some huge wave, and getting knocked around in that surf would HURT.

We briefly stopped by on our way to Waimea Canyon. If you're in the area, definitely check it out. You're more than safe even when hiking down past the "Danger!!!" sign. Look westward as well; the coastline is really interesting.