A Coast Guard 45-foot Response Boat - Medium from Station Calumet Harbor in Chicago provides a safety zone around the Norwegian tall ship Sorlandet as it prepares to moor at Navy Pier for Tall Ships Chicago 2013, Aug. 7, 2013. The event is part of the Tall Ships Challenge, which includes ports of call in the United States and Canada. (U.S. Coast Guard photo by Auxiliarist Jonathan Roth)