Aerial photo taken on Aug. 16, 2020 shows tourists taking a boating trip at Jiulongwan scenic spot in Zhuozi County, Ulanqab, north China's Inner Mongolia Autonomous Region. (Xinhua/Peng Yuan)

Aerial photo taken on Aug. 15, 2020 shows a view of Hongshiya national scenic spot in Zhuozi County, Ulanqab, north China's Inner Mongolia Autonomous Region. (Xinhua/Peng Yuan)

Tourists walk on a glass suspension bridge at Hongshiya national scenic spot in Zhuozi County, Ulanqab, north China's Inner Mongolia Autonomous Region, Aug. 15, 2020. (Xinhua/Peng Yuan)

Tourists walk on a glass suspension bridge at Hongshiya national scenic spot in Zhuozi County, Ulanqab, north China's Inner Mongolia Autonomous Region, Aug. 15, 2020. (Xinhua/Peng Yuan)

Tourists walk on a glass trestle at Jiulongwan scenic spot in Zhuozi County, Ulanqab, north China's Inner Mongolia Autonomous Region, Aug. 16, 2020. (Xinhua/Peng Yuan)

Tourists experience rafting on the river at Jiulongwan scenic spot in Zhuozi County, Ulanqab, north China's Inner Mongolia Autonomous Region, Aug. 16, 2020. (Xinhua/Peng Yuan)