Grand Island Trail Marathon
Race Day Weather
Warm day, maintain hydration
Runners will face temperatures rising from 58°F to a peak of 77°F, with humidity averaging 72%. Light winds from the NW will be a non-factor. It's advisable to start conservatively and increase hydration frequency as the temperature climbs. A throwaway layer may be useful before the race, given the steady temperature.
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Race Info
The Grand Island Trail Marathon takes place on Grand Island, a roughly 13,500-acre island in Lake Superior reachable only by ferry from Munising, Michigan. The race offers 50K, marathon, and half marathon distances along the island's perimeter trail, passing 300-foot Jacobsville sandstone cliffs and shoreline views of Pictured Rocks National Lakeshore. The marathon course measures about 27 miles, longer than the standard 26.2-mile distance. Entries are capped at 500 runners combined across all three distances.
