The Big Rimu Walk is a nature trail near Karamea, located in Kahurangi National Park on the West Coast of the South Island of New Zealand. A short walk of 1.1 kilometres (0.68 mi) through regenerating bush leads to a large rimu tree that is 36 metres (118 ft) tall with a trunk over two metres in diameter and estimated to be over 1,000 years old. Other smaller rimu in the area were logged during the 1940s but this large tree was left.