Blanco Shoals is a 1.6 mile lightly trafficked loop trail located near San Marcos, TX that features a river. The trail is good for all skill levels and primarily used for hiking, walking, and trail running. 1.6 miles 94 feet Loop kid friendly hiking trail running walking river Expand Map Sign up now to see this map! Reviews (0)Photos (0)Recordings (1)No one has reviewed this trail yet. Be the first!