![After rain, clouds surround the Xihai Grand Canyon, a sight-seeing spot on Mount Huang in Anhui Province, April 11, 2019. The mountain is a UNESCO World Heritage site, and one of China\'s major tourist destinations. (Photo: China News Service/Ye Yongqing)](http://www.ecns.cn/hd/2019/04/12/364936f0fdbe4bb9ad437d9d337026df.jpg)
After rain, clouds surround the Xihai Grand Canyon, a sight-seeing spot on Mount Huang in Anhui Province, April 11, 2019. The mountain is a UNESCO World Heritage site, and one of China's major tourist destinations. (Photo: China News Service/Ye Yongqing)
![After rain, clouds surround the Xihai Grand Canyon, a sight-seeing spot on Mount Huang in Anhui Province, April 11, 2019. The mountain is a UNESCO World Heritage site, and one of China\'s major tourist destinations. (Photo: China News Service/Ye Yongqing)](http://www.ecns.cn/hd/2019/04/12/75d1ff2f97154373a9443a4a350d5ef6.jpg)
After rain, clouds surround the Xihai Grand Canyon, a sight-seeing spot on Mount Huang in Anhui Province, April 11, 2019. The mountain is a UNESCO World Heritage site, and one of China's major tourist destinations. (Photo: China News Service/Ye Yongqing)
![After rain, clouds surround the Xihai Grand Canyon, a sight-seeing spot on Mount Huang in Anhui Province, April 11, 2019. The mountain is a UNESCO World Heritage site, and one of China\'s major tourist destinations. (Photo: China News Service/Ye Yongqing)](http://www.ecns.cn/hd/2019/04/12/b38230efa55946c199492adf5d0a65d3.jpg)
After rain, clouds surround the Xihai Grand Canyon, a sight-seeing spot on Mount Huang in Anhui Province, April 11, 2019. The mountain is a UNESCO World Heritage site, and one of China's major tourist destinations. (Photo: China News Service/Ye Yongqing)
![After rain, clouds surround the Xihai Grand Canyon, a sight-seeing spot on Mount Huang in Anhui Province, April 11, 2019. The mountain is a UNESCO World Heritage site, and one of China\'s major tourist destinations. (Photo: China News Service/Ye Yongqing)](http://www.ecns.cn/hd/2019/04/12/f8048d1e2f67465ca142d51f69599b7d.jpg)
After rain, clouds surround the Xihai Grand Canyon, a sight-seeing spot on Mount Huang in Anhui Province, April 11, 2019. The mountain is a UNESCO World Heritage site, and one of China's major tourist destinations. (Photo: China News Service/Ye Yongqing)
![After rain, clouds surround the Xihai Grand Canyon, a sight-seeing spot on Mount Huang in Anhui Province, April 11, 2019. The mountain is a UNESCO World Heritage site, and one of China\'s major tourist destinations. (Photo: China News Service/Ye Yongqing)](http://www.ecns.cn/hd/2019/04/12/a6587b2d52b944a5aced012dc7e90172.jpg)
After rain, clouds surround the Xihai Grand Canyon, a sight-seeing spot on Mount Huang in Anhui Province, April 11, 2019. The mountain is a UNESCO World Heritage site, and one of China's major tourist destinations. (Photo: China News Service/Ye Yongqing)