Canyonlands National Park is one of my favorite parks in the South West United States. Its colorful landscape is amazing and it is like a labyrinth of countless canyons, mesas and buttes created by natural agents. It has a huge variety and it is absolutely huge. Some areas can only be explored with an off road vehicle (and even with those, you need to know what you are doing).
During my last trip there I decided to rent a Jeep from one of the outfitters in Moab to explore a section of the White Rim trail. I left Moab around 4am to be at Mesa Arch (you can see here a photo I took there) at sunrise to be able to shoot the arch with a rising sun. It was fantastic!