The top near-town outdoors destination is 375-acre Bartholomew Park, off Castle Rd, where you can picnic beneath giant oaks and hike two miles of trails, with hilltop vistas to San Francisco. The Palladian Villa , at the park’s entrance, is a recreation of Count Haraszthy’s original residence, open noon to 3pm, Saturdays and Sundays. There's also a good winery, independently operated.