Hi. I'm new to this site. My husband and I are planning a trip for September 13 through the 29th, which will be 16 full days. We are flying into Phoenix and want to visit Sedona and then do the full circle including Canyon de Chelly, Moab, Bryce, Zion, the Grand Canyon, and Vegas. I wasn't sure whether to go clockwise seeing the grand canyon first, or counter clockwise. Also we are currently booked to fly back from Phoenix, but should we go counter clockwise and end in Vegas and fly back from there. My other thought is maybe I should have just flew in and out of Vegas even though the airfare is more expensive. There are no change fees with Southwest. Also other than booking in advance for something in or around Grand Canyon National Park, is it easy to find rooms without a reservation? Is 16 full days enough time to see all of this at an enjoyable pace or should I take out Chelly and some of the other destinations? Should I plan for 2 nights in Sedona? Thanks for any help!