Tourists pose for a photo at Tianchi scenic area in northwest China's Xinjiang Uygur Autonomous Region, April 25, 2020. (Xinhua/Sadat)

Tourists take selfies at Tianchi scenic area in northwest China's Xinjiang Uygur Autonomous Region, April 25, 2020. (Xinhua/Sadat)

A yacht sails on the Tianchi lake of Tianchi scenic area in northwest China's Xinjiang Uygur Autonomous Region, April 25, 2020. (Xinhua/Sadat)

A tourist takes selfies at Tianchi scenic area in northwest China's Xinjiang Uygur Autonomous Region, April 25, 2020. (Xinhua/Sadat)

A yacht sails on the Tianchi lake of Tianchi scenic area in northwest China's Xinjiang Uygur Autonomous Region, April 25, 2020. (Xinhua/Sadat)

Photo taken on April 25, 2020 shows the scenery of the Tianchi lake of Tianchi scenic area in northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Sadat)

A yacht sails on the Tianchi lake of Tianchi scenic area in northwest China's Xinjiang Uygur Autonomous Region, April 25, 2020. (Xinhua/Sadat)