![](http://www.ecns.cn/hd/2022/12/19/3dd1e8f1f2ca41f88817f7441187fb04.jpg)
The surface of the Qinghai Lake is frozen. Known as "the saphire on the plateau" and China's largest salt-water lake, the lake looks like a gem embedded on the northeastern part of the Qinghai-Tibet Plateau in "Qinghai. (Photo: China News Service/Zhang Shiwei)
![](http://www.ecns.cn/hd/2022/12/19/0c301c4213a64f9e86e906f9239d00d4.jpg)
The surface of the Qinghai Lake is frozen. Known as "the saphire on the plateau" and China's largest salt-water lake, the lake looks like a gem embedded on the northeastern part of the Qinghai-Tibet Plateau in "Qinghai. (Photo: China News Service/Zhang Shiwei)
![](http://www.ecns.cn/hd/2022/12/19/dff69a38e527419b8114af08618bddae.jpg)
The surface of the Qinghai Lake is frozen. Known as "the saphire on the plateau" and China's largest salt-water lake, the lake looks like a gem embedded on the northeastern part of the Qinghai-Tibet Plateau in "Qinghai. (Photo: China News Service/Zhang Shiwei)
![](http://www.ecns.cn/hd/2022/12/19/8279ff7272d34af38fea6f0d3180c457.jpg)
The surface of the Qinghai Lake is frozen. Known as "the saphire on the plateau" and China's largest salt-water lake, the lake looks like a gem embedded on the northeastern part of the Qinghai-Tibet Plateau in "Qinghai. (Photo: China News Service/Zhang Shiwei)
![](http://www.ecns.cn/hd/2022/12/19/3ae4730164f843c8be2d5d8c3bc72553.jpg)
The surface of the Qinghai Lake is frozen. Known as "the saphire on the plateau" and China's largest salt-water lake, the lake looks like a gem embedded on the northeastern part of the Qinghai-Tibet Plateau in "Qinghai. (Photo: China News Service/Zhang Shiwei)
![](http://www.ecns.cn/hd/2022/12/19/e66d47e5f7e94dcbaa287a4b3d37fa3a.jpg)
The surface of the Qinghai Lake is frozen. Known as "the saphire on the plateau" and China's largest salt-water lake, the lake looks like a gem embedded on the northeastern part of the Qinghai-Tibet Plateau in "Qinghai. (Photo: China News Service/Zhang Shiwei)
![](http://www.ecns.cn/hd/2022/12/19/7848f41b7f8248809acf31203d519f1e.jpg)
The surface of the Qinghai Lake is frozen. Known as "the saphire on the plateau" and China's largest salt-water lake, the lake looks like a gem embedded on the northeastern part of the Qinghai-Tibet Plateau in "Qinghai. (Photo: China News Service/Zhang Shiwei)