Tourists enjoy the scenery of the Gahai Wetland, in  in Gannan Tibet autonomous prefecture, in Gansu, surrounded by mountains. [Photo/xinhuanet.com]

The Gahai Wetland in Gansu is the source of the Taohe River, an important branch of the Yellow River.Covering an area of 57, 846 hectares, the wetland plays a significant role in ecological safety and water source protection of the Yellow River basin.

Gahai Wetland is 3,500 meters above sea level and lies on the northeastern border of the Qinghai-Tibet Plateau.

Gahai Wetland attracts many tourists to look at the clean water and plateau scenery on Sept 17. [Photo/xinhuanet.com]

The unique landscape of Gahai Wetland in Gansu. [Photo/xinhuanet.com]

                                                                                                                                               Editor: Lily Li