Auckland is situated on a narrow strip of land, flanked by two magnificent harbours to the east and west. The shallow Manukau Harbour opens out to the Tasman Sea to the west, while the Waitemata Harbour lies at the heart of the city centre and is Auckland's deepwater port. It has a vibrant waterfront that has flourished with the successful hosting of the 2002/2003 America's Cup, the international yachting event of the year, and the trendy restaurants and waterside cafes are a constant hive of activity. Known as the 'City of Sails', with a larger boat-to-person ratio than anywhere else on earth, it is a paradise for sailing enthusiasts and every weekend the waters of the Hauraki Gulf come alive with a flotilla of colourful sails. The best way to experience the city is from the water, sailing around the attractive harbour or on a ferry cruise to one of the many stunning islands dotted about the Gulf. Auckland is the largest and most cosmopolitan city in New Zealand and a major gateway to the rest of the country. Yet it is also one of the least densely populated in the world, covering an area twice the size of London but with barely a million inhabitants. It has a friendly small-town atmosphere and a deliberate pace of life. Beyond the bustling downtown area, dominated by the southern hemisphere's tallest building, the Sky Tower, the city sprawls outwards, with low-slung buildings and wooden houses among leafy parks and walking tracks. The suburbs wind their way around picturesque bays and harbours and between volcanic hills that provide panoramic views over the city and mountains, encompassing numerous green urban parklands that are dotted with sheep.