Chesapeake bay swimmers near bridge

    The Great Chesapeake Bay Swim

    Event overview

    About this event

    The Great Chesapeake Bay Swim (GCBS) is one of America’s premier open water swim challenges. The annual event is scheduled for the second Sunday of June and consists of a 4.4 mile swim across Maryland’s Chesapeake Bay.

    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 Libbey’s Coastal Kitchen Restaurant.

    Join the other swimmers for an iconic race in the waters of Chesapeake Bay

    The Great Chesapeake Bay Swim Races

    Great Chesapeake 4.4 Mile Bay Swim

    Iconic full distance swim

    Great Chesapeake 1 Mile Bay Challenge

    Iconic full distance swim

    Stevensville, MD, United States
    15, June 2025

    The event details are based on the publicly available information from the organiser.

    Event Location

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    Swimming resources

    Are you new to open water swimming? Check out our Open Water Swimming: beginner’s guide for useful tips on where to start your swim journey. Learn the difference between pool and open water and become confident in outdoor swimming.