Mark was our driver/guide and, along with 6 other travelers, we learned so much about the geology and history of the Grand Canyon. Each of the stops around the south rim gave us a new perspective on the beauty of this incredible gift from nature. At each stop and during the drive , we learned about the people who settled the area around Sedona and Flagstaff and those who called the area their home hundreds/maybe thousands of years before that. Mark was willing and able to answer all of our questions and never seemed to run out of new information during the 11 hours we were with him. The van was very comfortable and all were able to hear the information Mark passed along to us as we drove to each stop. We were provided with bottled water and a delicious lunch at the Cameron Trading Post. We had ample opportunity to explore independently at each stop and do a bit of shopping. For first time visitors, it was well worth the cost of the trip. And we didn’t have to drive! Would definitely recommend this tour to folks of all ages.