The Yarrangobilly Caves are located in a 12-kilometre-long karst region along the Yarrangobilly River valley in the north of Kosciuszko National Park, New South Wales, Australia. Discovered to British colonists by a cattleman, the Yarrangobilly Caves system includes several independent limestone caves formed over different time periods, from several million to a few hundred thousand years old. The older examples are in higher strata and have more speleothem decoration.