Hidden Valley Park is a large, 480-acre regional park in southeast Reno, of which 65 acres are developed. The park features the Clarence K. Bath Memorial horse arena with an announcer's stand and a grandstand area, a warmup arena, restrooms, a covered group picnic area (by permit only), individual picnic areas (non-reservable), tennis & pickleball courts, a volleyball court, two children's playground areas, and multi-purpose trails for hikers, bikers, and equestrians. The Link PIazzo Dog Park is located within the regional park as well. It is fully fenced and has separate enclosures for both large and small dogs. General information: contact Bartley Ranch Ranger Office at 828-6612. Contact Parks Administration to reserve the Vista picnic pavilion or horse arena at (775) 823-6501.