Several interesting trails in the John Muir Wilderness area offer a variety of hikes beginning behind Coldwater Campground. Climbing over Duck Pass to join the John Muir trail, the Duck Pass trail climbs the forested hillside behind Coldwater Campground and goes past Arrowhead, Skelton, and Barney lakes before going over Duck Pass. A side trail to Emerald Lake offers an alternate route to Skelton Lake or the option of a loop past Barret Lake returning to the west side of Lake Mary. Common destinations beyond Duck Pass include Duck Lake, with an intense, deep-blue color, and nearby Purple Lake.