If you decide to go hiking in Arches National Park, be prepared to have a very hot experience if you visit during the summer months. The hot sun with the reflective hot rocks will be the reason for you to carry a good amount of water. Recently, all the national parks are becoming very crowded as more people are now traveling to the national parks. So, the off season is a great time to experience and photograph the national parks. You will now need to schedule a reservation into Arches National Park and when I visited it, there wasn't a reservation system in place (less crowded).