If you want a fantastic personal and professional guided tour, I highly recommend booking with 3 Sisters and Shannon Cly. Shannon and her team will provide you with a very scenic and cultural experience getting to see and hear about Navajo life and the all the great scenery.
We had many stops on the Navajo guided tour that are not available on the self-guided personal vehicle driving option in the tribal park. If you want a grand experience, you need to book with a guide (especially 3 Sisters).
Shannon and Vern provided us with so much cultural information as well as clan life in the area. Vern also shared his flute and singing while on a stop in the amphitheater.
Our group thought it was the highlight of the trip to 4 corners. HIGHLY recommend seeing Monument Valley with 3 SISTERS TOURS