This aerial photo taken on Sept. 4, 2023 shows ships sailing at the Zigui Harbor in Zigui County of Yichang, central China's Hubei Province. The monthly cargo throughput via the five-tier ship locks at the Three Gorges Dam, the world's largest hydropower project in the upper stream of the Yangtze, reached a record high of over 15.71 million tonnes in August, according to the China Three Gorges Corporation. (Photo by Zheng Jiayu/Xinhua)
