![People view drones performance at the Orange Isle scenic area in Changsha, central China\'s Hunan Province, Aug. 16, 2018. Groups of drones performed a light show here to greet the Qixi festival, or Chinese Valentine\'s Day, which falls on Aug. 17 this year. (Xinhua/Zhang Xiaoyu)](http://www.ecns.cn/hd/2018/08/17/a6195b44b6ec4f1fb5c8fc9a5d2ff203.jpg)
People view drones performance at the Orange Isle scenic area in Changsha, central China's Hunan Province, Aug. 16, 2018. Groups of drones performed a light show here to greet the Qixi festival, or Chinese Valentine's Day, which falls on Aug. 17 this year. (Xinhua/Zhang Xiaoyu)
![People view drones performance at the Orange Isle scenic area in Changsha, central China\'s Hunan Province, Aug. 16, 2018. Groups of drones performed a light show here to greet the Qixi festival, or Chinese Valentine\'s Day, which falls on Aug. 17 this year. (Xinhua/Zhang Xiaoyu)](http://www.ecns.cn/hd/2018/08/17/809de331cefc47b4ba9de5e53c264d6c.jpg)
People view drones performance at the Orange Isle scenic area in Changsha, central China's Hunan Province, Aug. 16, 2018. Groups of drones performed a light show here to greet the Qixi festival, or Chinese Valentine's Day, which falls on Aug. 17 this year. (Xinhua/Zhang Xiaoyu)
![People view drones performance at the Orange Isle scenic area in Changsha, central China\'s Hunan Province, Aug. 16, 2018. Groups of drones performed a light show here to greet the Qixi festival, or Chinese Valentine\'s Day, which falls on Aug. 17 this year. (Xinhua/Zhang Xiaoyu)](http://www.ecns.cn/hd/2018/08/17/c8ac9d8e0ebd4eecbb9174b90721b689.jpg)
People view drones performance at the Orange Isle scenic area in Changsha, central China's Hunan Province, Aug. 16, 2018. Groups of drones performed a light show here to greet the Qixi festival, or Chinese Valentine's Day, which falls on Aug. 17 this year. (Xinhua/Zhang Xiaoyu)
![People view drones performance at the Orange Isle scenic area in Changsha, central China\'s Hunan Province, Aug. 16, 2018. Groups of drones performed a light show here to greet the Qixi festival, or Chinese Valentine\'s Day, which falls on Aug. 17 this year. (Xinhua/Zhang Xiaoyu)](http://www.ecns.cn/hd/2018/08/17/dc1aeb4d48b0408faf2c45d8ce024647.jpg)
People view drones performance at the Orange Isle scenic area in Changsha, central China's Hunan Province, Aug. 16, 2018. Groups of drones performed a light show here to greet the Qixi festival, or Chinese Valentine's Day, which falls on Aug. 17 this year. (Xinhua/Zhang Xiaoyu)