Participants make soap bubbles during the Bubble Battle held in Centre Island of Toronto, Canada, Aug. 17, 2013. (Xinhua/Zou Zheng)
A boy plays with soap bubbles during the Bubble Battle held in Centre Island of Toronto, Canada, Aug. 17, 2013. (Xinhua/Zou Zheng)
A participant makes soap bubbles during the Bubble Battle held in Centre Island of Toronto, Canada, Aug. 17, 2013. (Xinhua/Zou Zheng)