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Tourists swing on a cliff in the Tianzi Mountain waterfall scenic area in Qingyuan, south China's Guangdong Province, Oct. 28, 2018. (Xinhua/Zhang Jiayang)
Tourists swing on a cliff in the Tianzi Mountain waterfall scenic area in Qingyuan, south China's Guangdong Province, Oct. 28, 2018. (Xinhua/Zhang Jiayang)