We really wanted to go see slot canyon but we weren't willing to wade through freezing water in Zion to do it. So we found an out and stopped by the Valley of Fire State Park outside Vegas on our drive back to the airport. They have a small 1/4 mile slot canyon (where the water that ran through it smoothed out the rock so you can see all the layers that make them up).
We weren't expecting the park to be one of our favorite spots though. We pulled into the park and these huge red rocks jut up from the ground instantly consuming the landscape. There were very few people in the park so we got to run amok and climb on the rocks and through the holes and run off into the desert. We also got to see big horn sheep while we were there which was really cool. It was a really relaxing and beautiful end to the trip, even if I was a little nervous we'd get lost in the desert.
(the first picture is called elephant rock, the middle rock)
Big horn sheep!