The natural beauty of Gaojiahu wetland nature reserve, located in the Barkol Kazakh autonomous prefecture in the Xinjiang Uygur autonomous, attracts a large number of visitors during the summer. Many birds, including swans and wild geese, also flock to the reserve. A view of the reserve on July 31, 2017. [Photo by Zhao Xiaoqiang/provided to chinadaily.com.cn]