Tourists visit a scenic area in Suzhou, east China's Jiangsu Province, May 19, 2025. This year's May 19 marks the 15th China Tourism Day. (Photo by Wang Jiankang/Xinhua)

Tourists enjoy themselves at a historical and cultural block in Changzhou, east China's Jiangsu Province, May 19, 2025. This year's May 19 marks the 15th China Tourism Day. (Photo by Chen Wei/Xinhua)

An aerial drone photo taken on May 19, 2025 shows tourists visiting the Penglai Pavilion scenic spot in Yantai, east China's Shandong Province. This year's May 19 marks the 15th China Tourism Day. (Photo by Yu Liangyi/Xinhua)

An aerial drone photo taken on May 19, 2025 shows tourists interacting with seabirds on a boat on the waters near east China's Shandong Province. This year's May 19 marks the 15th China Tourism Day. (Photo by Li Xinjun/Xinhua)

Tourists visit Mogao Grottoes in Dunhuang, northwest China's Gansu Province, May 19, 2025. This year's May 19 marks the 15th China Tourism Day. (Photo by Zhang Xiaoliang/Xinhua)

Tourists enjoy themselves at a park in Lianyungang, east China's Jiangsu Province, May 19, 2025. This year's May 19 marks the 15th China Tourism Day. (Photo by Wang Jianmin/Xinhua)

People visit the imperial Xiaoling Mausoleum, the burial site of the Ming Dynasty's (1368-1644) founding emperor Zhu Yuanzhang, in Nanjing, east China's Jiangsu Province, May 19, 2025. This year's May 19 marks the 15th China Tourism Day. (Photo by Su Yang/Xinhua)

Tourists enjoy flowers at a park in Zaozhuang, east China's Shandong Province, May 19, 2025. This year's May 19 marks the 15th China Tourism Day. (Photo by Sun Zhongzhe/Xinhua)

Tourists enjoy themselves at the Zhengding ancient city in Shijiazhuang, north China's Hebei Province, May 19, 2025. This year's May 19 marks the 15th China Tourism Day. (Photo by Chen Qibao/Xinhua)

People visit the Baotu Spring in Jinan, east China's Shandong Province, May 19, 2025. This year's May 19 marks the 15th China Tourism Day. (Photo by Xu Zhou/Xinhua)

Tourists enjoy themselves at a national forest park at Tonglu County in Hangzhou, east China's Zhejiang Province, May 19, 2025. This year's May 19 marks the 15th China Tourism Day. (Photo by Xu Junyong/Xinhua)

An aerial drone photo taken on May 19, 2025 shows tourists visiting the Slender West Lake scenic spot in Yangzhou, east China's Jiangsu Province. This year's May 19 marks the 15th China Tourism Day. (Photo by Meng Delong/Xinhua)

People watch a folk performance at a scenic spot in Kaifeng City, central China's Henan Province, May 19, 2025. This year's May 19 marks the 15th China Tourism Day. (Photo by Li Junsheng/Xinhua)