Seaman Alexander Berggren of Coast Guard Station Port Huron, Mich., watches for people struggling in floats as a Coast Guard boat tows dozens of people aboard inflatable rafts across the St. Clair River at the unsanctioned marine event known as the Port Huron Float Down, during which more than a thousand people gathered Aug. 16, 2015, to float 7.5 miles down the St. Clair River between Port Huron and Marysville, Mich., on the border of the U.S. and Canada in inflatable and makeshift rafts. Throughout the afternoon U.S. and Canadian emergency responders and law enforcement officers towed hundreds of people who were blown into Canadian waters and didn't have paddles to help them cross back into the U.S. (U.S. Coast Guard photo by Chief Petty Officer Lauren Jorgensen)