The Great Chesapeake Bay Swim will be held on Sunday, June 14, 2020.

The Great Chesapeake Bay Swim (GCBS) is one of America’s premier open water swim challenges. It is held on the second Sunday of June and consists of a 4.4 mile swim across Maryland’s Chesapeake Bay. This charitable fundraiser benefits the Maryland Chapter of the March of Dimes, Chesapeake Bay Trust, and many other worthwhile charities. 

March of Dimes Logo

The race starts from the shores of Sandy Point State Park, which is about 5 miles northeast of Annapolis. The course extends eastward between the two spans of the William Preston Lane, Jr., Memorial Bridge (U.S. Highway 50) and finishes at a small sandy beach on Kent Island immediately south of the Bridge eastern-shore  causeway adjacent to Hemingway’s Restaurant 

Important Announcement

Lin-Mark Sports, Inc. handles registration and official timing for this event. All registration information and documentation deadlines can be found at

Our Sponsors

Bay Bridge Marina Yacht Club Logo
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Chesapeake Bay Power Boat Assoc. Logo
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