9月16日，當地群眾駕著豬槽船在瀘沽湖的王妃島轉海（無人機照片）。9月16日，2025年四川省涼山州首屆瀘沽湖轉山轉海節開幕。轉山轉海是居住在瀘沽湖附近摩梭人的重要民俗。從今年開始，四川省涼山州將每年農歷七月二十五日正式設立為“瀘沽湖轉山轉海節”，并納入地方法定節日，鹽源、木里兩縣群眾可享受一天專屬假期。[新華社記者 江宏景 攝]

An aerial drone photo taken on Sept. 16, 2025 shows local people sailing around an island while circling the lake by boat in Yanyuan County of Liangshan Yi Autonomous Prefecture, southwest China's Sichuan Province. The first mountain and lake circling festival of Lugu Lake kicked off at Liangshan Yi Autonomous Prefecture on Tuesday. Mountain and lake circling is an important folk custom of the Mosuo people living near Lugu Lake. Starting this year, Liangshan Prefecture has officially designated the 25th day of the seventh lunar month as the mountain and lake circling festival, making it a local statutory holiday. Residents of Yanyuan and Muli counties can enjoy a one-day exclusive holiday. (Xinhua/Jiang Hongjing)