The posted coordinates are a lookout point from which the final cache can be seen if you are very sharp-eyed. If not, you may want to journey to the first waypoint and seek the advice of the Rod of Wisdom.
At the waypoint there is a lot of leaf litter on the slope and among the big blocks. It might be helpful if you did a little sweeping up first. When you've finished tidying up, please hang up the broom again. The location of GZ will now be provided to you.
Enroute to GZ there is no need to hop any fences or enter into areas that are closed off. Just be a bit flexible in your approach. When you get there, take note of the three intersecting microecosystems. Please replace the natural camo after you've lifted out the L&L final. And make sure the container is fully closed to keep out water.