Western Australia is the largest state in Australia, from the tropical coast of Broome to the Karri forests in the South West. The state has numerous cave, including several show caves. The biggest Karst area of Australia is located mostly in Western Australia, the Nullarbor Plain. This extremely dry desert is a sort of fossil karst, as the complete lack of precipitation does not allow further development. It is remote and there are no show caves. Those are at the west coast, around the Capital Perth in a narrow fertile stripe along the coast.
Western Australia also has numerous valuable resources, most important are probably the gold mines around Kalgoorlie. They are an unique chance to have a look at still working gold mines.