The cave was huge, one of the largest I had ever seen on the Kona Coast. It was also thick with sponge, the ceiling inches deep in places… Perfect nudibranch habitat.
Pete found this group, a cluster of white margin nudibranch having a… uh… party? The results of the “party” can be seen in the center of the photo, small white, spiral egg masses.
The photo is actually upside down, the party was taking place on the ceiling.