The dog-friendly Duck Pass Trail scales 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 Barrett 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.
To get there, leave Hwy 395 at Mammoth Lakes, Hwy 203, and follow Lake Mary Road past Lake Mary. Follow the signs to Coldwater Campground. The trailhead is located behind the campground.
