This is a good spot to come to as a quick pullover to grab something out of the boot, check your phone quickly (you can still get reception here, but not far up the road it's nonexistent) or, grab a cache before the road gets too windy! The view from gz is, in my opinion, the nicest in this particular spot.
The cache you are looking for is a small tupperware like container, with logbook, pencil and room for small swaps.