Hi Linda I did this trip last year at the same time and it is fantastic, the only thing is the moving on every day. The hotels in salt lake city and vegas were the best. I would pack a little of everything because the weather can vary from day to day, do take a waterproof of some kind. Our coach driver was Mike (an ex cop) and our tour guide was Julie and they were both fantastic, hope you enjoy your trip. Jeanette.