I cannot say enough good things about our guide, Keaton, and our tour. Very professional outfit! From pickup in Flagstaff to the full day in the GC, lunch and return back, the day was perfect! Highly recommend and would book again, Keaton was fun and gave us so many lessons on the history of the GC, the native Americans, wildlife, geology, plant life, and everything in between. He was amazing. We could never have done so much in one day on our own. Plenty of unhurried viewpoint stops (7), restroom access, and a stop for a nice relaxing deli lunch! Do not hesitate to book this one!