(260312) -- CHANGSHA, March 12, 2026 (Xinhua) -- A man plays with his dog along the Chuanzi River in Changde, central China's Hunan Province, March 11, 2026.

The once heavily polluted Chuanzi River, which meanders through the city proper of Changde, has now become a clean and attractive scenic spot along its banks. Boasting a long history, the riverside Changde Hejie old street has been transformed into a historical and cultural block. (Xinhua/Chen Sihan)