Safety Zone; Ohio Street Beach Swim Course, Lake Michigan, Chicago Harbor, Chicago, IL

The Coast Guard will enforce a safety zone for the Chicago Masters' Big Shoulders 5K and 2.5K Open Water Swim event to provide for the safety of life on navigable waterways during a swim event. Our regulation for marine events within the Great Lakes Coast Guard District identified the safety zone for this event in Chicago, IL. During the enforcement period, entry into, transiting, or anchoring within the safety zone is prohibited unless authorized by the Captain of the Port Lake Michigan or a designated on-scene representative.

From Federal Register — USCIS and DHS (federalregister.gov). First seen Oct 10, 2026.

Sign in to keep notes on this item, private or shared with your team.