Champlain Islands Marathon and Half Marathon
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About the race
Champlain Islands Marathon and Half Marathon, in its 54th edition, will be held Sunday, October 19, 2025, in South Hero, Vermont. The race is based at Folsom Elementary School, and the certified course begins and ends near the historic Clarence H. DeMar house.
The half-marathon runs out and back along the west shore of South Hero and Grand Isle, through farms, apple orchards, and cottages; the terrain is flat to rolling and fully paved. The full marathon is two laps of the half course. Registration, results, and full details are on RunSignup.
The event is part of GMAA’s schedule and fosters an all-abilities community atmosphere. Visit the organization's website for the most recent information.