A 1.5km (3km-return) walk trail leads you through spectacular forests on your way to the Granite Skywalk. Here, you can embrace your inner adventurous spirit with a hike to the top of Castle Rock via The Granite Skywalk in Porongurup National Park. This rewarding hike, involving a final scramble to get to the top, will grant you sweeping views of the stunning landscape including undulating farmland to Albany, huge peaks to the east and mountainous Stirling Ranges to the north.