A week or so ago, on a camping trip to Cochiti Lake, my son and I made this sand dolphin. He insisted that it have a side fin. I have no idea what that’s called, my zoology knowledge doesn’t go beyond the word fin, but I was pretty impressed that he made a structure with sticks and then plastered the sand on that to get the fin to stick up straight. The massive mermaid sized tail fins are my contribution. Don’t judge, they were super cute.