Photo shows a waterfall in Niru Village at Potatso National Park in Shangri-La, Deqen Tibetan Autonomous Prefecture, southwest China's Yunnan Province, May 28, 2022. Hikers have gathered at Potatso National Park for the first Shangri-La outdoor festival, held here from May 27 to 30. (Xinhua/Cao Mengyao)

A hiker takes photos of a waterfall at Potatso National Park in Shangri-La, Deqen Tibetan Autonomous Prefecture, southwest China's Yunnan Province, May 28, 2022. Hikers have gathered at Potatso National Park for the first Shangri-La outdoor festival, held here from May 27 to 30. (Xinhua/Cao Mengyao)

Hikers walk along the route from Shudu Lake to Niru Village at Potatso National Park in Shangri-La, Deqen Tibetan Autonomous Prefecture, southwest China's Yunnan Province, May 28, 2022. Hikers have gathered at Potatso National Park for the first Shangri-La outdoor festival, held here from May 27 to 30. (Xinhua/Cao Mengyao)

Hikers walk along the route from Shudu Lake to Niru Village at Potatso National Park in Shangri-La, Deqen Tibetan Autonomous Prefecture, southwest China's Yunnan Province, May 28, 2022. Hikers have gathered at Potatso National Park for the first Shangri-La outdoor festival, held here from May 27 to 30. (Xinhua/Cao Mengyao)

Photo shows the Shudu Lake at Potatso National Park in Shangri-La, Deqen Tibetan Autonomous Prefecture, southwest China's Yunnan Province, May 28, 2022. Hikers have gathered at Potatso National Park for the first Shangri-La outdoor festival, held here from May 27 to 30. (Xinhua/Cao Mengyao)