The North Island Main Trunk railway line passes through Porirua, mostly close to State Highway 1, with six stations including the main Porirua Railway Station inside the city and one on the Wellington City border. The railway stations from south to north are Kenepuru, Porirua, Paremata, Mana (known as Dolly Varden before 1960), Plimmerton, Pukerua Bay, and Muri (closed 30 April 2011). Kapiti Line suburban passenger trains run between Wellington and Waikanae (generally half-hourly during the day before 15 July 2018 and every twenty minutes during the day after that date, more frequently during peak periods, and less frequently at night). The Northern Explorer long-distance passenger train between Auckland and Wellington passes through Porirua. This train was known as the Overlander before 25 June 2012 which stopped southbound but not northbound.