Sand dunes at Farewell Spit. Tasman District.Farewell Spit is a narrow sand spit situated at 40°31′S 172°52′E / 40.517°S 172.867°E / -40.517; 172.867, at the northern end of the South Island of New Zealand. Known to the Māori as Tuhuroa, it runs eastwards from Cape Farewell, the island's northernmost point. It is located about 50 kilometres north of Takaka and 20 kilometres from Collingwood.