Trail Heads Powder Mill Trail Head and parking lot is in the southeast corner of the park, on Graham Hill Road just north of Sims Road. Horse trailers are allowed, and horses may be ridden on all trails near the parking lot. Rincon Fire Road and parking lot is in the south side of the park, on Highway 9 about three miles south of the main entrance. Ox Trail Head and parking lot is on the west side of the park, on Highway 9 about 1.4 miles south of the main entrance. Redwood Grove Trail is a flat, easy loop around the giant redwoods.
Restrooms are available at the half-way point.
Wheelchairs and strollers may use its smooth, packed trail. Self-guided brochures are available at the Nature Center for 25 cents. The trailhead is near the Nature Center. Fishing is permitted in the San Lorenzo River during the Steelhead and Salmon season, approximately November through February. This activity governed by the California Department of Fish and Game.