Today while snorkeling along the coast near Kioni, I saw a species I have never seen before. At least not alive. I have often seen the calcified “tubes” on the beach, but had no idea where they came from. There were about four of them, all in the same area. As I would get close, they would quickly retract their tentacles into the tube and shut the door. When the protula felt safe again, it would slowly extend the tentacles back out.