In San Luis Valler, Colorado is located the Great Sand Dunes National Park and Reserve – a place with the tallest sand dunes in North America. Some of the dunes are 750 feet high (230meters). The landscape of the park is always changing because the wind. The dunes everyday are with different shapes.
The park is well known with its outdoor activities like hiking, sand sledging, wildlife watching or splashing in Medano Creek, which is right next to the sand dunes. If you want some different experience you should visit the Great Sand Dunes National Park.
You can get more info at official website: https://www.nps.gov/grsa/index.htm
Great Sand Dunes National Park - One of the most popular travel destinations in Colorado.