New Zealand is located near the centre of the water hemisphere and is made up of two main islands and more than 700 smaller islands. The two main islands (the North Island, or ''Te Ika-a-Māui'', and the South Island, or ''Te Waipounamu'') are separated by Cook Strait,  wide at its narrowest point. Besides the North and South Islands, the five largest inhabited islands are Stewart Island (across the Foveaux Strait), Chatham Island, Great Barrier Island (in the Hauraki Gulf), D'Urville Island (in the Marlborough Sounds) and Waiheke Island (about  from central Auckland).