Take 101 to Petaluma, California, about 35 miles North of San Francisco, 80 miles West of Sacramento, 16 miles South of Santa Rosa. Exit on Washington Street, head west through town. In 1.4 miles bear right onto Bodega Avenue. Proceed approximately 8 miles west to the intersection of Tomales Road and Valley Ford Road. Bear right onto Valley Ford Road. Do not turn left to the USCG training center, stay right. Proceed about 12 miles to Valley Ford. Turn left onto Valley Ford Estero Road just past Dinucchi’s restaurant. Turn right then left to stay on Valley Ford Estero Road. Turn left onto Marsh Rd, parking is on one side of Marsh Road only.

GPS coordinates: 38.309055, -122.936665