I am planning a road trip with my family (wife and 3 kids - 9, 7, and 4) from South Carolina to the Grand Canyon and to the Utah National Parks. We will travel for 15 days in the middle of May. I am seeking advice on the best way to navigate this road trip. My initial plan is to make it from SC to the Petrified Forest National Park in 4 days and visit this park on the 5th day. We would then travel to the Grand Canyon and spend days 6 and 7 getting there and enjoying that park. On Day 8 we would travel to Zion National Park and on day 9 we would visit Bryce Canyon NP. On Day 10 we would visit Arches National Park and then on days 11 - 15 we would begin our journey home hopefully stopping for a day to see family and take in the sights around Denver, CO (maybe even Rocky Mountain NP?). Is my timeline possible or do I need to make some serious adjustments? Any advice on how to space out the travel days to AZ and back to SC would also be greatly appreciated (also best places to see along the way). I would also love your thoughts on the best way to manage the hotel situation. Any tips on deals to use a particular chain and get a better rate?