Located in the northwest of Shangri-La County, Yila Prairie is a beautiful prairie in the Shangri-La area. Yila, Tibetan means "Leopard Mountain", because the legendary Yila Prairie is located in the north of the Leopard Mountain is a "Shenshan", hence the name. Running on the vast grasslands makes people feel relaxed and happy. The Yila Prairie and Napa Sea are actually one and are a seasonal plateau wetland. Whenever the rainy season comes, many rivers such as the Milky River around Shangri-La are here, the water surface rises, and the grassland is submerged. At this time, it is called “Napa Sea”; when the rainy season passes, the water level drops, revealing a large wetland, which is called “ Yila Grassland."