The Napa lake is the provincial nature reserve of Yunnan ,located at west of Shangri-la City in Diqing Tibetan Autonomous Prefecture of Yunnan Province.

In winter,Napa lake becomes the home of migratory birds such as Black-necked Crane,black Stork,Grey Crane and so on. The winter of Napa Lake shows different views that Black-necked Cranes are feeding,playing or flying in the wetland .(photo by Wang jianjun,Chucheng Jiangchu)