On the way out of Alamosa we stopped by the Great Sand Dunes National Park. This was my favorite part of our Colorado trip. There are 30 miles of sand dunes! We only hiked through a tiny portion of it. We kept thinking that we were at the top, but it seemed to never end. Boba was such a trooper going up and loved running around in the sand. It was cold walking around, but it was not so bad. It was better than it being really hot. I would recommend checking out the sand dunes if you're ever around that area.