Mackinac Island Great Turtle Half Marathon & 5.7 Mile

Mackinac Island Great Turtle Half Marathon & 5.7 Mile takes runners onto the trails of Mackinac Island, Michigan, on October 24, 2026. The 5.7-mile run starts at 10:30 a.m., the 5.7-mile walk at 10:35 a.m. and the half marathon (13.1 miles) at 10:45 a.m. Runners who complete three of the four events in the Mackinac Island Trio series earn special medals. Every athlete receives commemorative gear, an invitation to the post-race celebration and access to downtown attractions and exclusive sales.

Trails on an island mean varied footing and a race best run by feel rather than by a target split, so choose a shoe with some grip and let the clock take second place. The 5.7-mile option is a good middle distance if you are between a 10K and a half. Getting there is part of the plan too: island logistics deserve as much thought as your taper.