New Zealand State Highway 20 New Zealand State Highway 20 State Highway 20, also known as the Southwestern Motorway, is a New Zealand state highway linking State Highway 1 at Manukau City Centre with State Highway 16 in Point Chevalier, via Mangere and Onehunga. Along with its spurs, State Highway 20A and 20B, the state highway serves Auckland Airport, the country's largest, therefore making State Highway 20 a key arterial route connecting the airport to the wider Auckland region and most of the upper North Island. The route also forms the southern part of the Western Ring Route, a motorway route bypassing central Auckland. It
Napier, New Zealand pipeline to the region. Napier City Council recognises three sister city relationships. Napier, New Zealand Napier ( ; ) is a New Zealand city with a seaport, located in Hawke's Bay on the eastern coast of the North Island. The population of Napier is about About south of Napier is the inland city of Hastings. These two neighbouring cities are often called "The Bay Cities" or "The Twin Cities" of New Zealand. The total population of the Napier-Hastings Urban Area is people, which makes it the sixth-largest urban area in New Zealand, closely followed by Dunedin (), and trailing the