Waitematā Harbor is the principle access via ocean to Auckland, New Zealand. Consequently it is frequently alluded to as Auckland Harbor and is crossed by the Auckland Harbor Bridge, in spite of the way that it is one of two harbors encompassing the city. The Waitematā shapes the north and east shorelines of the Auckland isthmus. It is coordinated on the south by the shallower waters of Manukau Harbor. With a size of 70 square miles it interfaces the city's principle port and the Auckland waterfront to the Hauraki Gulf, and the Pacific Ocean. It is shielded from Pacific tempests by Auckland's North Shore, Rangitoto Island and Waiheke Island. The name is from the Māori dialect, with Wai te Mataa alluding to obsidian glass. The 'shining waters' (a later interpretation of the meaning) of the harbor were said to flicker like the volcanic glass prized by these unexpected arrivals to the harbour.