Penguin Island and the Swan Plain Karst, WA

Back in the Jurassic, in the time when the dinosaurs of Gondwana roamed along the Western Australian shores, the foundation was laid down on the floor of the ocean for the subterranean caves that dive deep into the limestone beds found around Perth. This in part is the Swan Plain Karst, a broad shore of Limestone that has been carved and fashioned by the subterranean rivers that flow beneath our feet, and in land movement over the ages.