This trip across marshy meadows and alongside a peaceful creek could be either a hiker’s dream or nightmare—depending how you feel about grizzly bears. The remote Pelican Valley is some of the best grizzly habitat in the continental U.S., and as such, the park restricts hiking to daytime, and only after July 4. If that excites rather than terrifies you, get a group of at least four and strike out into the wide-open valley. The trail wanders through meadows and traces the meandering Pelican Creek, where you might also see bison, wolves, elk, and eagles. The washed-out bridge across the creek at mile 3.1 makes a good turnaround point, but the trail extends all the way into the Lamar Valley for multiday excursions.