Introduction to Sand Dune Park: Covering an area of ​​more than 1.2 million square meters, the large golden sand dunes are nestled among green mountains and green waters, making it a "desert in an oasis". The sand here is fine and smooth, making sand sliding and sand bathing very interesting. It also has miraculous effects on skin diseases, anorexia and ADHD in children. There is a lake under the dunes known as the "Fairy Lake beyond the Great Wall". Visitors can take sand baths and sandboarding on the dunes, swim in the lake, and fish on the peninsula.