As I live in AZ we visit every few years. We enjoy the drive from the east entrance where there are several stops to view from. Before the park entrance is the Little Colorado River Gorge. A sight in itself. Numerous local Indians sell their jewelry and crafts there. At the south rim village is a visitors center, El Tovar lodge where we love to have lunch, and many interesting shops with historical artifacts to view. We spend an afternoon at the canyon. We aren't hikers so never RV'd at the canyon.
Instead we love to take our RV to Williams, 60 miles south of the canyon. Quite a bit to see and do around Williams. Very fun old route 66 town.