Photo taken on Aug 26, 2018 shows the scenery in Saihanba National Forest Park in Chengde city, North China’s Hebei province. [Photo/Xinhua]

Tourists enjoy the scenery in Saihanba National Forest Park in Chengde city, North China’s Hebei province, Aug 26, 2018. [Photo/Xinhua]

Tourists enjoy the scenery in Saihanba National Forest Park in Chengde city, North China’s Hebei province, Aug 26, 2018. [Photo/Xinhua]