Honolulu is the capital city of Hawaii and also seat of Honolulu County, found on the southern coast of Oahu Island. The urban area of Honolulu is governed as part of Honolulu County, which encompasses the island of Oahu and some outlying islets. This article covers what the United States Bureau of the Census has delineated as the "census designated place" of Honolulu. The community is found on a narrow plain stretching east to west from Makapuu Point to Pearl Harbor and from the Pacific inland to the Koolau Mountains. It covers a land area of 214.5 sq km (82.8 sq mi). Two renowned extinct volcanic craters, Diamond Head as well as the Punchbowl, are in Honolulu, which is famous for its magnificent setting and pleasant climate. The name Honolulu is derived from a Hawaiian term meaning "sheltered harbor."