Those visitors choosing the Monument Valley self-guided tour are required to stay on the main road. The next time Alan and I visit the area, we'll book a Navajo guide for a trip on the Mystery Valley Tour. Private tours offer access to petroglyphs, Anasazi dwellings, a couple of sandstone arches and more rock formations. Some tours include a night of communing with nature while camping under the stars on Hunts Mesa. Although the scenery is stunning in its own right, the real meaning of a trip to Monument Valley comes when one learns about the culture and history from the Navajo point of view.