Tourists take roller coaster during the Qingming Holiday, the three-day holiday for the Tomb-Sweeping Day, at Daguan Park in Kunming, capital of southwest China's Yunnan Province, April 4, 2017. (Xinhua/Lin Yiguang)
Tourists take roller coaster during the Qingming Holiday, the three-day holiday for the Tomb-Sweeping Day, at Daguan Park in Kunming, capital of southwest China's Yunnan Province, April 4, 2017. (Xinhua/Lin Yiguang)