Aerial photo taken on June 3, 2021 shows the scenery of the Nakao River wetland park in Nanning, south China's Guangxi Zhuang Autonomous Region. (Photos: Xinhua)

Aerial photo taken on June 3, 2021 shows the scenery of the Nakao River wetland park in Nanning, south China's Guangxi Zhuang Autonomous Region.

Aerial photo taken on June 3, 2021 shows the scenery of the Nakao River wetland park in Nanning, south China's Guangxi Zhuang Autonomous Region.

Aerial photo taken on June 3, 2021 shows the scenery of the Nakao River wetland park in Nanning, south China's Guangxi Zhuang Autonomous Region.

Aerial photo taken on June 3, 2021 shows the scenery of the Nakao River wetland park in Nanning, south China's Guangxi Zhuang Autonomous Region.