13th Annual Chicago Ducky Derby held in Chicago, United States

A volunteer recovers rubber ducks from the Chicago River following the 13th Annual Chicago Ducky Derby in Chicago, the United States, Aug. 9, 2018. Derby organizers dropped about 60,000 rubber ducks into the Chicago river on Thursday to start the Rubber Ducky Derby this year, which helps raise money for Special Olympics Illinois. (Xinhua/Wang Ping)?