Once I got there I figured you could actually drive there, but I'm not sure what roads you'd take.
I arrived and shortly after I started searching in all kinds of hidden places, some muggles wandered over and started taking pictures. I sat down to wait them out and read the logs. Just as I did that, I looked over and saw it. Pretty funny.
I grabbed it when they left and was signing the log when I heard some others coming down the trail. I had to quickly put it back together and set it upright before they got there. I took a camo film can and left a US quarter and a Fiji 5 cent piece.
Speaking of not natural, that pond was really weird green. Thanks for the fun cache.