I agree with the three most recent reviews. This tour was really amazing and for first timers, like we were, gives you a great overview of the canyon. We did it as our first side trip (we took several) and I recommend doing it early during your days there. Richard Thayer has a passion and a VERY vast knowledge of the canyon, its geology, the best spots for photo opportunities, etc. Plus, he is just a nice, easy going guy. We also went to the Navajo Trading Post and ate a delicious Indian Taco for lunch. Then, we stopped at the Navajo roadside craft stand and purchased some jewelry and a handmade Christmas ornament. Our 13-year-old son enjoyed the all-day tour and didn't get bored. One recommendation: As a precaution, take or apply sunscreen before the tour. There are a number of stops and the sun is very intense. A great day!