Zion National Park
We biked and hiked on multiple visits to Zion National Park. It seems the best driving in the park is as you enter from the east side and includes passing through a mile-long tunnel on your way to the visitor center that is all the way on the west side of the park. If you come in the west side and just go hiking from there, you will miss some great scenery, so be sure and drive all the way through the park. Enjoy!