A 10-minute loop path north from the beach parking lot leads to a pair of lava-tube caves. Their garden-like exteriors are draped with ferns and colorful impatiens, while their interiors harbor deep spring-fed pools with some resident fish. Waiʻanapanapa means ‘glistening waters’ and the pools’ crystal-clear mineral waters reputedly rejuvenate the skin. They certainly will invigorate – these sunless pools are refreshingly brisk!