Tourists watch sugar painting in Hejiayu Village in Zunhua City, north China's Hebei Province, on May 19, 2019, China Tourism Day. (Photo: Xinhua)

Tourists watch a performance in Wuxi Three Kingdoms Film and Television City in Wuxi City, east China's Jiangsu Province, on May 19, 2019, China Tourism Day. (Photo: Xinhua)

Tourists visit Pingyao Ancient City, north China's Shanxi Province, on May 19, 2019, China Tourism Day. (Photo: Xinhua)

Tourists visit Slender West Lake in Yangzhou City, east China's Jiangsu Province, on May 19, 2019, China Tourism Day. (Photo: Xinhua)

Tourists visit Slender West Lake in Yangzhou City, east China's Jiangsu Province, on May 19, 2019, China Tourism Day. (Photo: Xinhua)

Tourists visit Slender West Lake in Yangzhou City, east China's Jiangsu Province, on May 19, 2019, China Tourism Day. (Photo: Xinhua)

Tourists vist Crescent Lake scenic area in Dunhuang City, northwest China's Gansu Province, on May 19, 2019, China Tourism Day. (Photo: Xinhua)

Tourists visit Hukou Waterfall of the Yellow River in Jixian County, north China's Shanxi Province, on May 19, 2019, China Tourism Day. (Photo: Xinhua)

Tourists watch a video played on a dome in Haichang Whale Shark Ocean Park in Yantai City, east China's Shandong Province, on May 19, 2019, China Tourism Day. (Photo: Xinhua)

Tourists vist Crescent Lake scenic area in Dunhuang City, northwest China's Gansu Province, on May 19, 2019, China Tourism Day. (Photo: Xinhua)

Tourists visit Hukou Waterfall of the Yellow River in Jixian County, north China's Shanxi Province, on May 19, 2019, China Tourism Day. (Photo: Xinhua)

Tourists visit Pingyao Ancient City, north China's Shanxi Province on May 19, 2019, China Tourism Day. (Photo: Xinhua)

Folk artists play drums in Taierzhuang Ancient Town in Zaozhuang City, east China's Shandong Province, on May 19, 2019, China Tourism Day. (Photo: Xinhua)

Tourists take selfie on a glass skywalk in Hongshizhai scenic area in Linyi City, east China's Shandong Province, on May 19, 2019, China Tourism Day. (Photo: Xinhua)

Tourists drift in Zhuquan Village in Linyi City, east China's Shandong Province, on May 19, 2019, China Tourism Day. (Photo: Xinhua)

Tourists visit Pingyao Ancient City, north China's Shanxi Province on May 19, 2019, China Tourism Day. (Photo: Xinhua)