Three provinces of China make efforts to clean up water in tri-border area

Aerial photo taken on Aug. 24, 2018 shows tourists rafting on Sanjiangkou River in Jiangshan City, east China's Zhejiang Province. In recent years, three provinces of east China's Zhejiang, Jiangxi and southeast China's Fujian have made efforts to clean up water cooperatively in their tri-border area. (Xinhua/Wu Chunhua)