Read "Industrial Tourism and the National Parks" by Edward Abbey in Desert Solitaire. His solution is as simple as making people get off their asses and walk or bike, etc, rather than the then-current trend of building paved roads and parking lots ever closer to the "attractions".

There is, believe it or not, an IMAX theater right outside of Zion that shows movies of the park. My first reaction was to be appalled by the brazen crassness of such a thing. In time, my opinion has softened: if it diverts people from coming into the park for nothing more than a look around, great. Let them stay the hell out of the park and move on to the next checkbox on their vacation. It'll be less crowded for those of us who do like to hike.

Abridged version here:

https://lvk104.wordpress.com/2010/03/12/polemic-industrial-t...