Trail features: Hike to a unique rock formation, viewpoint, cascades, and a swimming hole. The Riprap-Wildcat Ridge loop is a very strenuous, but action packed, 9.8 mi/15.7 km hike. You can hike this loop from Riprap Parking at mile 90 of Skyline Drive or from Wildcat Ridge Parking at mile 92.1 of Skyline Drive. The loop combines the Appalachian Trail, Riprap Trail, and Wildcat Ridge Trail. There are several stream crossings and a small waterfall. Follow the map in whichever direction you choose, being careful at the intersections to take the appropriate trail.