Ruined Castle campground is a small, remote campsite in Jamison Valley, just below the natural rock formation called Ruined Castle. It works best as an overnight stop for hikers who want the short climb from camp to the rock top and views across the valley toward Mount Solitary and Narrowneck Peninsula. The popular approach via Golden Stairs is about 4 km one way. It is very steep and stepped, so this suits experienced bushwalkers rather than a casual overnight outing. A longer approach starts near Scenic World and follows Federal Pass and Mount Solitary walking track.