Runners follow an out-and-back course for the half marathon along the West River Parkway in New York’s Beaver Island State Park, which along the U.S.-Canadian border. From the starting line inside the park along the edge of the Beaver Island golf course, runners head west and north along the river, following it north all the way along the edge of Grand Island to the half-way turnaround point, and then back along the parkway in reverse to the race finish in the park.
(MORE: Grand Island Half Marathon event details)