Puslinch tract is behind the on route on the cambridge side of the 401 east bound . It's the trail network that's near puslinch lake . There is a dogging area off the parking lot that is near the highway . We have gone in groups of three couples on atvs looking for greasy action . Would sooo do this again if we can line shit up !!' The area is also a gay cruise so If your not into that .. Well whatever .