Every boat launch needs a trailer park and every trailer park needs a cache. That is my thinking at least.
From GZ enjoy the view north of Spofford Lake.
This is a parking area for unwanted trailers during the summer. The boats get to have all the fun. Should be a quick stop and grab. If you are feeling the need for some adventure follow 9A east to Rt.9 (just a suggestion).
If having trouble locating cache just remember: go near the tree (magnetically speaking)