Aerial photo taken on Aug. 4, 2022 shows the mist-shrouded Xinglong Mountain in Chengde City, north China's Hebei Province. (Xinhua/Luo Xuefeng)

People visit the mist-shrouded Xinglong Mountain in Chengde City, north China's Hebei Province, Aug. 4, 2022. (Xinhua/Luo Xuefeng)

A staff member introduces the mist-shrouded Xinglong Mountain via a live show in Chengde City, north China's Hebei Province, Aug. 4, 2022. (Xinhua/Luo Xuefeng)

Aerial photo taken on Aug. 4, 2022 shows the mist-shrouded Xinglong Mountain in Chengde City, north China's Hebei Province. (Xinhua/Luo Xuefeng)

Aerial photo taken on Aug. 4, 2022 shows the mist-shrouded Xinglong Mountain in Chengde City, north China's Hebei Province. (Xinhua/Luo Xuefeng)

Aerial photo taken on Aug. 4, 2022 shows the mist-shrouded Xinglong Mountain in Chengde City, north China's Hebei Province. (Xinhua/Luo Xuefeng)

Aerial photo taken on Aug. 4, 2022 shows the mist-shrouded Xinglong Mountain in Chengde City, north China's Hebei Province. (Xinhua/Luo Xuefeng)

People visit the mist-shrouded Xinglong Mountain in Chengde City, north China's Hebei Province, Aug. 4, 2022. (Xinhua/Luo Xuefeng)

Aerial photo taken on Aug. 4, 2022 shows the mist-shrouded Xinglong Mountain in Chengde City, north China's Hebei Province. (Xinhua/Luo Xuefeng)