This is another one of those places we had no idea even exists. GZ can be accesed from the north (it is easier to find, south access is tricky if you are not familliar with the area).
The short hike trough the ravine will lead you to the nice little green patch where you can enjoy the search for this cache and have a picnic after or the ather way around 
Please take care when putting back in place so that it's concealed from the muggles.
