Invercargill Airport (IATA: IVC, ICAO: NZNV) is a controlled aerodrome located 1 nautical mile (2 km) west of the city centre of Invercargill at the bottom of the South Island of New Zealand. It is the southernmost controlled airport in the Commonwealth. Formed on land reclaimed from the Waihopai/New River Estuary in 1938, the airport was prone to flooding, notably in 1984 when it was inoperable for two months. The Invercargill City Council considered moving the airport back to Dawson Farm, Myross Bush, the original site up to 1942. Instead, a large flood protection scheme was built, but during its construction heavy rain and an unusually high tidal surge flooded it again in 1987. There have been no problems since.