3 Best Sights in Great Sand Dunes National Park, Colorado

This moderately challenging route follows the Montville Trail laid out centuries ago by Native Americans, which became the Mosca Pass toll road used in the late 1800s and early 1900s. This is a good afternoon hike, because the trail rises through the trees and subalpine meadows, often following Mosca Creek. Watch for grouses and turkeys along the route and listen for songbirds and owls cooing at dusk. It is 3½ miles one way, with a 1,400-foot gain in elevation. Hiking time is about two hours each way.

Get a panoramic view of all the surrounding dunes from the top of High Dune. Since there's no formal path, the smartest approach is to zigzag up the dune ridgelines traversing about 2½ miles round-trip. High Dune is 693 feet high, and to get there and back takes about two hours, or longer if there's been no rain for some time and the sand is soft. If you add on the walk to the 741-foot Star Dune, plan on another two or three hours and a strenuous workout up and down the dunes.

If it's a hot day, take a drive to the falls section of the Zapata Falls Recreation Area, about 7 miles south of Great Sand Dunes National Park (and about 10 miles north of Alamosa). From the trailhead, it's a ½-mile hike to the 40-foot waterfall and a mildly steep trail, which can include wading in a stream and walking through a narrow gorge to view the falls (depending on water levels). Air temperatures in the gorge are always cool and inviting, and the falls are beautiful, but be careful of the current (and slippery rocks) here. A picnic area and restrooms are at the entrance. The trailhead is 3½ miles off Highway 150, between mile markers 10 and 11.