Hawaii is the 50th and most recent state of the United States of America, receiving statehood on August 21, 1959. Hawaii is the only U.S. state located in Oceania and the only one composed entirely of islands. It is the northernmost island group in Polynesia, occupying most of an archipelago in the central Pacific Ocean. Hawaii is the only U.S. state not located in the Americas. The state does not observe daylight saving time.
Hawaiʻi Volcanoes National Park, established in 1916, is a United States National Park located in the U.S. State of Hawaii on the island of Hawaii. It encompasses two active volcanoes: Kīlauea, one of the world's most active volcanoes, and Mauna Loa, the world's most massive subaerial volcano. The park gives scientists insight into the birth of the Hawaiian Islands and ongoing studies into the processes of vulcanism. For visitors, the park offers dramatic volcanic landscapes as well as glimpses of rare flora and fauna.
In recognition of its outstanding natural values, Hawaiʻi Volcanoes National Park was designated as an International Biosphere Reserve in 1980 and a World Heritage Site in 1987. In 2012 the Hawai'i Volcanoes National Park was honored on the 14th quarter of the America the Beautiful Quarters series.
Diamond Head is the name of a volcanic tuff cone on the Hawaiian island of Oʻahu and known to Hawaiians as Lēʻahi, most likely from lae 'browridge, promontory' plus ʻahi 'tuna' because the shape of the ridgeline resembles the shape of a tuna's dorsal fin. Its English name was given by British sailors in the 19th century, who mistook calcite crystals on the adjacent beach for diamonds.
Waimea Canyon State Park encompasses 1,866 acres (7.5 km²) and is a popular tourist attraction on the island. It provides a wilderness area with numerous hiking trails. It can be accessed from Waimea on Hawaiʻi state road 550, which is 18 miles long and leads up to Koke'e State Park. The island of Niihau, only a short distance west of Kauai at that point, can be clearly seen from the highway.