Granite Skywalk (Castle Rock)

The Granite Skywalk is a suspended steel walkway encircling the granite summit of Castle Rock in Porongurup National Park, about 40 kilometres north of Albany in Western Australia's Great Southern region. Opened in 2011, the skywalk provides 360-degree views over the Porongurup Range, Stirling Range and surrounding farmland. Reached via a steep 4.7-kilometre return trail involving rock scrambling and a ladder, it is notable for its ancient 1.1-billion-year-old granite and elevated viewing platform.

Visitors can expect a steep uphill hike through jarrah, marri and karri forest to the granite dome of Castle Rock, followed by rock scrambling and a 6-metre ladder climb to a two-tiered suspended steel walkway wrapped around the summit. The skywalk offers open 360-degree views across the Porongurup and Stirling Ranges, farmland and coastline on clear days. The setting is natural and exposed, with large granite boulders, seasonal wildflowers and interpretive signage along the trail.