The plan had been to get on one of the Park Shuttles (which have bike racks) and ride it 8 miles to the end of Zion Canyon Scenic Drive, do a short hike, and then ride our bikes back. But when we saw the long line of people waiting for the shuttle, we figured it might take an hour or two just to get on the shuttle. So we decided to just start riding our bikes into the canyon, on the paved Pa'rus Trail.