Course Map: Great South Bay Half Marathon

Runners follow an out-and-back course for all three races at the Great South Bay Run, which starts at the corner of Bay View Avenue and South Clinton Avenue, and finishes in Bay Shore Manor Park. In between the race start and finish line, runners follow a winding route through this town on the southern shore of Long Island, along many of its quaint, cozy downtown streets, including Main Street and past Walker Park and Gardiners County Park.

(MORE: Northwell Health Great South Bay Half Marathon event details)

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Note: The course map above provides the approximate route for the race. Though every effort has been made to ensure its accuracy, changes are sometimes made to race routes due to weather conditions, road closures or other circumstances that can require a course to be changed. If you see an error above, contact us here.

1 comment… add one
  • Erika wick September 16, 2019, 8:40 am

    Why does Town of Islip continually allow races that result in the people who live south of main street between clinton and homan having their lives disrupted because some group wants go run and close off main street..once a year would be fine but races and events occur frequently..let the people run thru the lakes area..or close down main street in islip..or close down Windsor and let them run neighbors are not the ones running..yet everytime you hold an event I must leave my house very early in order to make sure I can go to work.
    Or other times I am done working and cant return home..doesnt seem fair to keep us the victims repetitively..let them run in their own neighborhoods.


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