Take a drive on a road where you get to see amazing cliffs towering above you as you drive in to the floor of the Zion Canyon. In the summer portions can only be accessed via shuttle, but in the winter, you can drive the full length. 2 hour scenic drive.
This drive takes you right through the middle of Zion's beauty. We visited in the summer and had to take the shuttle bus instead of our car. The kids actually loved the bus ride- the narration was interesting, and they got to sit without seat belts, a welcome concept after a long car-ride.
If you visit outside of summer, you can make this drive on your own. Be sure to head to the Riverside walk toward the end of the road.