This photo shows a view of Sayram Lake in Bortala Mongolian Autonomous Prefecture, northwest China's Xinjiang Uygur Autonomous Region, Jan. 14, 2025. (Xinhua/Du Juanjuan)

This photo shows a view of Sayram Lake in Bortala Mongolian Autonomous Prefecture, northwest China's Xinjiang Uygur Autonomous Region, Jan. 14, 2025. (Xinhua/Du Juanjuan)

This photo shows a view of Sayram Lake in Bortala Mongolian Autonomous Prefecture, northwest China's Xinjiang Uygur Autonomous Region, Jan. 14, 2025. (Xinhua/Du Juanjuan)

This photo shows a view of Sayram Lake in Bortala Mongolian Autonomous Prefecture, northwest China's Xinjiang Uygur Autonomous Region, Jan. 14, 2025. (Xinhua/Du Juanjuan)

Tourists visit Sayram Lake in Bortala Mongolian Autonomous Prefecture, northwest China's Xinjiang Uygur Autonomous Region, Jan. 14, 2025. (Xinhua/Du Juanjuan)

Tourists take photos in front of a frozen waterfall at Sayram Lake in Bortala Mongolian Autonomous Prefecture, northwest China's Xinjiang Uygur Autonomous Region, Jan. 14, 2025. (Xinhua/Du Juanjuan)