
Puu Loa Petroglyphs: One of the richest petroglyph fields in Hawaii, with more than 23,000 images carved into the lava rock—most before Westerners arrived in Hawaii. Towards the coastal end of Chain of Craters Rd. within Hawaii Volcanoes National Park (see more info on the park in the Kau section below), the .7-mile hike ends in a boardwalk from which petroglyphs are easily visible. www.nps.gov/archive/havo/history/archeology/puuloa.htm