Maungauika is a volcano forming a headland called North Head at the east end of the Waitemata Harbour in Auckland, New Zealand in the suburb of Devonport. Known for its sweeping views over the harbour and the Hauraki Gulf, since 1885 the head was mainly used by the military as a coastal defence installation, which left a network of accessible old bunkers and tunnels as its legacy, forming part of the attraction. The site was protected as part of Hauraki Gulf Maritime Park in 1972 and listed as a Category I historic place in 2001. As part of a 2014 Treaty of Waitangi claim settlement the volcanic cone was officially named Maungauika and the reserve renamed Maungauika / North Head Historic Reserve.