We had some of the most fun we have had on our entire trip at White Sands National Monument. While we didn't know about the sleds until it was too late, we had a blast anyway just rolling, bouncing, body surfing and tumbling down the huge dunes created from gypsum. Even mom got in on the fun (watch the video!). We also enjoyed searching for animal tracks and the younger boys did the junior ranger program, their fifth so far on this trip. Lots of badges and patches!