Southern Humboldt Community Park, off US 101 exit 639B to 934 Sprowl Creek Rd., has multiuse trails that loop through a 431-acre tract of grassland, farmland, upland forest and redwood groves. The park is considered a model of sustainable food production, forest management and watershed restoration.
Within Richardson Grove State Park, 8 miles south on US 101, are significant stands of old-growth redwoods, including several trees that exceed 340 feet in height. Nine miles of hiking trails traverse the groves. The park visitor center, located in the historic Richardson Grove Lodge, has natural history exhibits and provides information about summer nature programs and guided walks; phone (707) 247-3318.
One-Log House, on US 101 near the park entrance, was hollowed out of a single redwood tree more than 2,100 years old. Thirty-two feet long and about 11 feet wide, it houses a gift shop with historical photos and a collection of antique drag saws.