Waitangitāhuna River

Waitangitāhuna River
Part of the southern section of the river viewed from the State Highway 6 bridge
Location
CountryNew Zealand
RegionWest Coast
DistrictWestland District
Physical characteristics
Source 
  locationMcFetrick Peak
  elevation2,188 metres (7,178 ft)
Mouth 
  location
Tasman Sea
  coordinates
43°08′17″S 170°14′21″E / 43.1381°S 170.2393°E / -43.1381; 170.2393
Length37 km (23 mi)

The Waitangitāhuna River (formerly called the Waitangitaona River) are two rivers in the West Coast region of New Zealand's South Island. It was a single river until an avulsion in March 1967, when it became two rivers. Since then, the southern portion of the river has flowed into Lake Wahapo, while the northern section discharges into the Tasman Sea north of Ōkārito Lagoon.