Harriman State Park, Route 6/Long Path trail
 

There is a great spot in Harriman State Park, guys cruising there all the time and fooling around in the woods. From the traffic circle at the intersection of The Palisades Parkway, Seven Lakes drive & Route 6, take Route 6 WEST. You will start up a hill. Just under a mile near top of hill, look for little road with a sign for Long Path Trail parking area on the right. pull all the way in and park. Explore all the little trails into the woods near the "fire danger" sign, and the trails branching off from the Long Path (blue) trail, near the large sign board at the far end of the parking area. There are horny guys there all the time on nice weather days.