Absolutely fantastic. I was with my 20 year old daughter and we both loved every part of the day. Chad Graf was our guide and he was so articulate, informed and kind. We learned so much about Arizona geological and Native American history, as well as about the Americans who made such an impact on the Grand Canyon experience over the last century. We were with 8 other tourists and they were so fun. We all felt like family by the end of the day. We were together around 14 hours and it seemed like two! Highly recommend it