Trailhead Hike: Prince William Forest Park, VA

$26. Long hike: 11½ mi., 1400 ft. ascent, 1200 ft. descent. Moderate hike: 8½ mi., 1000 ft. ascent, 800 ft. descent.

We’ll get a taste of the park’s 37 miles of trails by first heading west, then north, on the South Valley Trail. Moderate hikers follow the Oak Ridge Trail east to a parking area on the park’s Scenic Drive. Long hikers add a circuit on the Farms to Forest Trail, then follow the moderate hikers’ route.