Across from Vet School on Westboro-Grafton line. Most people bring their dogs and let them run off leash. The area is mostly fenced in with openings for entering and exiting; it does run along a main road and Commuter rail tracks so you need to be careful as a dog may run under the fence or through the exits. Location: Rt 30 be the Tufts Vet School. Directions: Rt 30.