Auckland is the largest metropolitan area in New Zealand, with a population of over 1 million in the greater urban area. It is located in the northern half of the North Island, on a narrow isthmus of land that joins the Northland peninsula to the rest of the North Island. It is composed of four separate cities, Manukau city in the south, Waitakere city in the west, North Shore city in the north and Auckland city itself, on and around the isthmus. The wider local government area which includes rural areas, small towns and the islands of the Hauraki Gulf is Auckland Region. Auckland is often known as the City of Sails for the large number of yachts that grace the Waitemata Harbour and the Hauraki Gulf. It could also be known as the City of Volcanoes. Much of its natural character comes from the fact that it is built on the Auckland Volcanic Field which consists of about 48 volcanoes. All of the volcanoes are individually extinct but the volcanic field as a whole is not. Auckland is the largest city in Polynesia. Auckland rates well in quality-of-life polls consistently rating in the top 5 of the major polls. http://wikitravel.org/en/Auckland