Yes, sometimes you can go back and try the other route, but you can't ever have the same experience you would have if you had made the other choice in the first place. 

So, let go of the conundrum, and get on with it.

Besides, eventually, we all stop for lunch at the Trees of Mystery. It's no big deal, though you will finally get to take that precious photo of Paul Bunyan and Babe the Blue Ox. Priceless.