A performance is staged at a certification ceremony for the Lhalu Wetland National Nature Reserve in Lhasa, southwest China's Xizang Autonomous Region, Dec. 20, 2025. Verified by the World Record Certification Agency (WRCA), the Lhalu Wetland National Nature Reserve has been confirmed as the "highest altitude natural urban wetland." The certification ceremony was held at the wetland on Saturday.

Located in the urban area of Lhasa, the wetland covers an area of 12.2 square kilometers at an average altitude of 3,649 meters. (Xinhua/Jigme Dorje)

A staff member of the Lhalu Wetland National Nature Reserve displays a certificate issued by the World Record Certification Agency (WRCA), in Lhasa, southwest China's Xizang Autonomous Region, Dec. 20, 2025. Verified by the World Record Certification Agency (WRCA), the Lhalu Wetland National Nature Reserve has been confirmed as the "highest altitude natural urban wetland." The certification ceremony was held at the wetland on Saturday.

Located in the urban area of Lhasa, the wetland covers an area of 12.2 square kilometers at an average altitude of 3,649 meters. (Xinhua/Jigme Dorje)

Bar-headed geese are pictured at the Lhalu Wetland National Nature Reserve in Lhasa, southwest China's Xizang Autonomous Region, Dec. 20, 2025. Verified by the World Record Certification Agency (WRCA), the Lhalu Wetland National Nature Reserve has been confirmed as the "highest altitude natural urban wetland." The certification ceremony was held at the wetland on Saturday.

Located in the urban area of Lhasa, the wetland covers an area of 12.2 square kilometers at an average altitude of 3,649 meters. (Xinhua/Jigme Dorje)

Bar-headed geese are pictured at the Lhalu Wetland National Nature Reserve, with the Potala Palace in the background, in Lhasa, southwest China's Xizang Autonomous Region, Dec. 20, 2025. Verified by the World Record Certification Agency (WRCA), the Lhalu Wetland National Nature Reserve has been confirmed as the "highest altitude natural urban wetland." The certification ceremony was held at the wetland on Saturday.

Located in the urban area of Lhasa, the wetland covers an area of 12.2 square kilometers at an average altitude of 3,649 meters. (Xinhua/Jigme Dorje)