Photo taken on June 13, 2011 shows hot air balloons in a night show during the 2011H1 Hot Air Balloon Challenge in Haikou, capital of south China's Hainan Province. A total of 30 hot air balloon teams from all over the country took part in this event. (Xinhua/Guo Cheng)
Photo taken on June 13, 2011 shows hot air balloons in a night show during the 2011H1 Hot Air Balloon Challenge in Haikou, capital of south China's Hainan Province. A total of 30 hot air balloon teams from all over the country took part in this event. (Xinhua/Guo Cheng)
Photo taken on June 13, 2011 shows hot air balloons in a night show during the 2011H1 Hot Air Balloon Challenge in Haikou, capital of south China's Hainan Province. A total of 30 hot air balloon teams from all over the country took part in this event. (Xinhua/Guo Cheng)
