Pu'u Loa Petroglyph Trail
Just a short 0.7 mile hike off the road are the Pu'u Loa Petroglyphs. Bring some decent shoes because you are walking across the lava rocks and cracks and following cairns most of the way. When you get there, there is a raised boardwalk that takes you around the petroglyphs. The Petroglyphs with holes represent a newborn baby. The custom was to come out with the umbilical cord, create a new hole, and put the umbilical cord in the hole.