Air balloons fly over the Millenium Bridge in Haikou, south China's Hainan Province, June 15, 2011. An air balloon competition kicked off here Wednesday, in which contestants are requested to fly across the Qiongzhou Strait from the city of Haikou in Hainan and reach a designated place in Xunwen County in the neighboring Guangdong Province.[Photo/English.news.cn]