Pest Free Onethaua is a landscape-scale predator control project spanning 12,000ha of unique coastal and forest habitats in Golden Bay, at the top of the South Island.

The project area stretches from the iconic tip of Farewell Spit Nature Reserve to the edge of Whanganui Inlet. It also includes Pākawau Forest in Kahurangi National Park and Kaihoka Lakes Scenic Reserve.