Warmed by one of the area’s many volcanically heated springs, this balmy, shallow pool lined with lava rocks and shady trees is protected from the surging ocean by a concrete wall, although very high surf can crash over it. It’s not a snorkeling site per se, but silver fish use inlets to dart around the pool’s usually clear waters, while a few eels hide in the rocks (if you don’t bother them, they won’t bother you). Shaded by tall palms, it’s a pretty setting even if you don’t plan to go into the water (which you shouldn’t if you have any open cuts, due to possible bacteria, although the county does perform regular tests). Facilities include a lifeguard, picnic tables, and porta-potties—wear your bathing suit under your clothes so you don’t have to change in one.