When a wave hits the mountain, it forces water up through a hole in the lava. There is no pattern to the blow. One never knows how high the plume will be or how long it will last. I missed a couple dozen of them trying for the perfect shot. This isn’t it, but it’s the best I’ve got.
This scene played out right below the light house, which you can see here, Let’s Go to The Beach, Boys, along with some surfing pics.