On our way to NM, driving down the very slow high way (75mph compared to 80-90 mph on the autobahn) we decided to stop at Great Sand Dunes National Park.
Even walking out there in closed toe shoes, my feet were burning inside my shoe, so I didn't get to go all the way to the dunes :( But it was still cool to go there. The sand there is super fine!
After that, we continued onto our drive to Santa Fe, NM.