Wow, definitely had to go off the beaten track for this one. I took a route up and tightly alongside the fence, and only after getting to the GZ did I discover the easier way. Still a tough thing to find with the foliage so verdant. TFTC and thanks for the walk and the view, too!
From the top of the folly I can just make out my hotel in the distance (see photo)! Better go get some breakfast!