JuanPabloC

Planning a three-week road trip through the American West focusing on National Parks. I have never been to any of them before. I have heard Zion, Bryce Canyon, Grand Canyon, Arches, and Canyonlands are all incredible. Is it realistic to see all of them in three weeks? Which ones are the most impressive? And what are the practical things I need to know - do I need to book campsites in advance? Are there times of year that are significantly better? Any advice from people who have done this trip would be really helpful.