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)