Hawaii Vacations

Diamond Head
Photo courtesy of Kirk Lee Aeder



Diamond Head

Diamond Head is Oahu's largest tuff cone formed over 100,000 years ago by an active bubbling volcano. Nineteenth century British sailors nicknamed the crater Diamond Head when they mistook the calcite crystals for diamonds. A well-graded trail leads you up the 760-feet summit to a World War II bunker with a bird's eye view of Honolulu.