There is no better sign for a Vizsla owner than an "OFF LEASH AREA BEYOND THIS POINT."
Exit I-680 on Ygnacio Valley Road in Walnut Creek and drive east. After about three miles turn right on Walnut Avenue. After about two miles turn right on Oak Grove Road, then bear right onto Castle Rock Road and follow it to the Orchard Staging Area on the right (This lot closed during winter and wet weather). There is informal parking near the park entrance at the end of Castle Rock Road.