A drone photo taken on Sept. 16, 2025 shows a view of Nam Co, the world's highest saltwater lake, in southwest China's Xizang Autonomous Region. Nam Co, located in the Qinghai-Xizang Plateau, with a lake-surface elevation of 4,718 meters, is the second largest lake in the region. (Xinhua/Jiang Fan)

A drone photo taken on Sept. 16, 2025 shows a view of Nam Co, the world's highest saltwater lake, in southwest China's Xizang Autonomous Region. Nam Co, located in the Qinghai-Xizang Plateau, with a lake-surface elevation of 4,718 meters, is the second largest lake in the region. (Xinhua/Jiang Fan)

Naked carps are pictured in Nam Co, the world's highest saltwater lake, in southwest China's Xizang Autonomous Region, Sept. 16, 2025. Nam Co, located in the Qinghai-Xizang Plateau, with a lake-surface elevation of 4,718 meters, is the second largest lake in the region. (Xinhua/Jiang Fan)

A stitched aerial drone photo taken on Sept. 16, 2025 shows a view of Nam Co, the world's highest saltwater lake, in southwest China's Xizang Autonomous Region. Nam Co, located in the Qinghai-Xizang Plateau, with a lake-surface elevation of 4,718 meters, is the second largest lake in the region. (Xinhua/Jiang Fan)

A tourist takes photos for her dog by Nam Co, the world's highest saltwater lake, in southwest China's Xizang Autonomous Region, Sept. 16, 2025. Nam Co, located in the Qinghai-Xizang Plateau, with a lake-surface elevation of 4,718 meters, is the second largest lake in the region. (Xinhua/Jiang Fan)

Naked carps are pictured in Nam Co, the world's highest saltwater lake, in southwest China's Xizang Autonomous Region, Sept. 16, 2025. Nam Co, located in the Qinghai-Xizang Plateau, with a lake-surface elevation of 4,718 meters, is the second largest lake in the region. (Xinhua/Jiang Fan)

Tourists take wedding photos by Nam Co, the world's highest saltwater lake, in southwest China's Xizang Autonomous Region, Sept. 16, 2025. Nam Co, located in the Qinghai-Xizang Plateau, with a lake-surface elevation of 4,718 meters, is the second largest lake in the region. (Xinhua/Jiang Fan)