Hidden Valley is a nice place to explore with your best fur-iend. If your mutt loves exploring new places and finding new friends, jump in the car and drive the 50 minutes to Hidden Valley; your pup will thank you! Explore the area of Hidden Valley Regional Park until you find what you have come for: Link Piazzo Dog Park, adjacent to the main one. It is literally a hidden gem for dogs and their owners, tenderly adored by visitors and residents alike. The park features two separate areas for small and large breeds, an enormously big area for playing off-leash, barking, and spotting new friends. You’ll find all the necessary supplies here, including doggie waste bags and water, so all you need to bring is Fido’s favorite toy!