Myself, wife and 2 adult children will be in Sedona for 2 days at the end of April. We have planned on taking one of the jeep tours. My son an otherwise fit and active 25 year old fractured his kneecap about 3 weeks ago. He is able to walk around pretty well and does not need crutches or a cane but he will likely be in a cast that prevents him from bending his leg. Any suggestions on which of the tours, if any, would be better for us to consider?