Ōpārara Basin
The Ōpārara Basin is a basin drained by the Ōpārara River at 20 kilometres (12 mi) north of Karamea, at the West Coast Region of the South Island of New Zealand. With its large natural rock arches, a network of caves rich in fossils, and a beautiful, unspoiled natural environment typical of temperate rainforests, it is one of the most striking places of the Kahurangi National Park.
The Ōpārara Basin is also famous for its unique remains in paleozoology and for being the sole habitat of several plant and animal species.