(241018) -- YIBIN, Oct. 18, 2024 (Xinhua) -- People walk on a bank road of the Sanjiangkou Yangtze River Park in Yibin City, southwest China's Sichuan Province, Oct. 13, 2024. The city of Yibin is an important ecological shelter and water source conservation base on the upper reaches of the Yangtze River. The Yangtze River, Jinsha River, and Minji