The part that you will find the hardest will not be finding the cache at GZ. There's also no difficult tree climbing or tunnel burrowing or mysterious puzzle solving involved. The hardest part will be sorting out how to get there even though it is at the end of the trail. There are at least five streets that you could use on your walk to GZ but none of them follow a direct route.
Please use care as you approach GZ as there are many side trails to private homes. If it feels like you have left public land and are standing in someone's backyard, then you probably are!
This section of the trail used to be looked after regularly and sometimes parts of it are even mowed, but it is but a shadow of its former self and can be quite difficult to navigate after and during wet weather. Please return using the path you arrived on; there are no other public exits from this part of the "park".
Bring your own scribble implement.