Aerial photo taken on Aug. 16, 2020 shows waterfalls at Liujiang River in Liuzhou, south China's Guangxi Zhuang Autonomous Region. (Photo by Li Hanchi/Xinhua)

Aerial photo taken on Aug. 15, 2020 shows the view of Liujiang River in Liuzhou, south China's Guangxi Zhuang Autonomous Region. (Photo by Li Hanchi/Xinhua)

Aerial photo taken on Aug. 16, 2020 shows the view of Liujiang River in Liuzhou, south China's Guangxi Zhuang Autonomous Region. (Photo by Li Hanchi/Xinhua)

Aerial photo taken on Aug. 16, 2020 shows boats sailing on Liujiang River in Liuzhou, south China's Guangxi Zhuang Autonomous Region. (Photo by Li Hanchi/Xinhua)