Deer Leap - 54 acres of public conservation land, with a dusk to dawn curfew. Public access and parking can be found by taking Range Rd to Marblehead Rd to Woodbury Rd. Woodbury Rd is a dirt road. Parking lot is on the left at N42 46.040, W71 17.820.
After finding the cache, continue down the path for another 5 minutes to enjoy the view from the cliffs at N42 45.960, W 71 18.222, but be sure to keep the kids close. From the cliffs you can return along the same path, or continue on to complete the circle.
More information on the area can be found in a booklet called "Walking in Windham", available at the Windham library.