Moore Creek Park encompasses 673 acres of canyon open space with perennial Moore Creek and 900 acres of oak woodland on the northeastern side of Lake Hennessey. This park offers several trail options, ranging from 700 to 1,600 feet in elevation. Hikers, mountain bikers, equestrians, and nature lovers will find trails through the grassy hillsides of eastern Napa Valley, following the Moore Creek Canyon and along the Lake Hennessey shore.

The trails showcase the oak, douglas fir, and madrone woodlands, grasslands, chaparral, and the park is home to wildlife including black bears, mountain lions, bobcats, gray foxes, and coyotes. Bald Eagles have been spotted at Lake Hennessey along with golden eagles, hawks, osprey, great blue heron, white egrets, woodpeckers, and loons.