The enormous #CathedralGorge is one of the best places in Australia to test out your vocal cords and shout out "cooeee" - due to its incredible natural acoustics. You'll find this awe-inspiring natural amphitheatre in @westernaustralia's #Purnululu National Park, which is located in the East Kimberley, around 100km from Halls Creek and 250km from Kununurra. Photo: @aptouring