Artificial floating islands installed on tributaries of rivers to help purify water in Wenchang, S China

This aerial photo taken on Dec. 25, 2022 shows artificial floating islands installed on a tributary of the Wenjiao River in Wenchang, south China's Hainan Province. 

This photo taken on Dec. 25, 2022 shows artificial floating islands installed on a tributary of the Wenjiao River in Wenchang, south China's Hainan Province. 

This photo taken on Dec. 24, 2022 shows artificial floating islands installed on a tributary of the Baoling River in Wenchang, south China's Hainan Province. 

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