The posted coordinates are for the starting point. There used to be a shack in the middle of the road (you may see the square in the asphalt where it was).
April 2023 update: The first set of reflectors is still in place, but is hidden from view while at the starting point due to a bush growing up in front of it. Follow the left road and look along the way.
From there you are on your own. If you get wet, don't blame me. I will tell you that when you have gotten to the 6th set of reflectors you will have to turn. The hint is a real give-away.
I am sorry to say that there’s no longer a surprise in the cache.