Tourists are ready to depart Hong Kong West Kowloon Railway Station in Hong Kong, south China, Aug. 21, 2019. As protracted violence continue to roil Hong Kong, its tourism industry has turned into a chilly winter due to the unrest. In the June-July period, average earnings for tourism workers plunged by 74 percent, while the number of tours in Hong Kong fell 74 percent on average, according to a survey by the Hong Kong Tour Guides General Union. (Xinhua/Qin Qing)

Photo taken on Aug. 20, 2019 show the entrance of the Ocean Park in Hong Kong, south China. As protracted violence continue to roil Hong Kong, its tourism industry has turned into a chilly winter due to the unrest. In the June-July period, average earnings for tourism workers plunged by 74 percent, while the number of tours in Hong Kong fell 74 percent on average, according to a survey by the Hong Kong Tour Guides General Union. (Xinhua/Mao Siqian)

Few tourists are seen at a duty-free store in Causeway Bay of Hong Kong, south China, Aug. 20, 2019. As protracted violence continues to roil Hong Kong, its tourism industry has turned into a chilly winter due to the unrest. In the June-July period, average earnings for tourism workers plunged by 74 percent, while the number of tours in Hong Kong fell 74 percent on average, according to a survey by the Hong Kong Tour Guides General Union. (Xinhua/Qin Qing)

Tourists visit the Peak Hong Kong scenic spot in south China's Hong Kong, Aug. 20, 2019. As protracted violence continue to roil Hong Kong, its tourism industry has turned into a chilly winter due to the unrest. In the June-July period, average earnings for tourism workers plunged by 74 percent, while the number of tours in Hong Kong fell 74 percent on average, according to a survey by the Hong Kong Tour Guides General Union. (Xinhua/Lu Hanxin)

Tourists visit the Avenue of Stars of Hong Kong, south China, Aug. 20, 2019. As protracted violence continue to roil Hong Kong, its tourism industry has turned into a chilly winter due to the unrest. In the June-July period, average earnings for tourism workers plunged by 74 percent, while the number of tours in Hong Kong fell 74 percent on average, according to a survey by the Hong Kong Tour Guides General Union. (Xinhua/Lu Hanxin)