Tourists view a light show marking the National Day holiday at the Olympic Sailing Center in Qingdao, East China's Shandong province, Oct 3, 2018. [Photo/Xinhua]

Photo taken on Oct 3, 2018 shows a light show marking the National Day holiday at the Olympic Sailing Center in Qingdao, East China's Shandong province, Oct 3, 2018. [Photo/Xinhua]