Don't get too close to the edge! Do not attempt a direct route from the parking lot!
From the parking area, go around the upper orange gate and follow the main trail up the mountain. Several switchbacks up the mountain you will reach a waypoint for the turn that heads towards the cache.
From the main trail you will follow a trail created by the fire department to get to a brush fire over this way. There used to be a faint trail heading to the power line and the overlook beyond. I was with the first fire crews, a couple of years ago, and followed the faint trail in on foot to locate the fire. By the time we had the fire out, the trail was wide enough to drive ATVs and brush trucks all the way to the power line.
The trail narrows and continues to a great viewpoint. To get to the cache from the easy viewpoint, you'll have to cross a slope covered in loose, slippery rocks. Then you'll have to bushwhack through mountain laurel and trees to reach the cache site. The edge of the cliff is mostly sided with shrubbery, but take care not to get too close. There is no need for extreme cliff climbing; just a BevanQ-style walk on the mountain! Once at the cache, you will see a place to sit and enjoy the view of the roof of the old WalMart building, far below. There's an open spot for the view -- take care not to get close to the edge of the cliff. You are looking for a camouflaged wide-mouth water bottle, clearly marked as a geocache, in a winter unfriendly location.
I placed this to commemorate my tenth anniversary of geocaching. I found my first cache, here on Wantastiquet Mountain, on August 11, 2006.