The Waitemata Harbour is the main access by sea to Auckland, New Zealand. For this reason it is often referred to as Auckland Harbour, despite the fact that it is only one of two harbours surrounding the city, and is crossed by the Auckland Harbour Bridge. The Waitemata forms the north and east coasts of the Auckland isthmus. It is matched on the south by the shallower waters of Manukau Harbour.
With a size of 70 square miles, it connects the city's main port and the Auckland waterfront to the Hauraki Gulf, and the Pacific Ocean. It is sheltered from Pacific storms by Auckland's North Shore, Rangitoto Island and Waiheke Island. - Wikipedia