A girl returns from the sailing league competition in Qingdao, east China's Shandong Province, Aug 18, 2016. The CYA (China Yachting Association) Sailing League entered its fourth day of competition in Qingdao on Thursday, in which more than 100 young athletes from eight cities across China took part in four levels of contests. [Photo/Xinhua]

A girl takes part in the sailing league competition in Qingdao, east China's Shandong Province, Aug 18, 2016. The CYA (China Yachting Association) Sailing League entered its fourth day of competition in Qingdao on Thursday, in which more than 100 young athletes from eight cities across China took part in four levels of contests. [Photo/Xinhua] 

A boy takes part in the sailing league competition in Qingdao, east China's Shandong Province, Aug 18, 2016. The CYA (China Yachting Association) Sailing League entered its fourth day of competition in Qingdao on Thursday, in which more than 100 young athletes from eight cities across China took part in four levels of contests. [Photo/Xinhua]