Grand Island Trail Marathon
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Grand Island Trail Runs : Grand Island, Munising, Michigan (July 25, 2026)
The Grand Island Trail Runs offer three trail distances on Grand Island, an island in Lake Superior just offshore from Munising, Michigan. Courses run along the island perimeter and include singletrack, two-track and narrow dirt roads, sandy beach sections, and a tombolo. Notable features on the routes include Trout Bay, Echo Lake, 100–300 ft Jacobsville sandstone cliffs, North Beach, and views across to the Pictured Rocks National Lakeshore and Lake Superior.
The event is limited to 500 total entrants. Race fees cover roundtrip shuttle bus and ferry transportation, a custom race shirt if registered by the deadline, a finisher medallion, and post-race refreshments. A large tent near the start/finish provides gear storage on the island; items left on the island are returned to the mainland ferry boat store.
Aid stations are provided on each course; the half marathon has two aid stations. All participants are required to carry a 20 oz water bottle or other functional hydration system to refill at aid stations. Aid station offerings include water, an electrolyte drink, and nutrition such as gels. Time limits are set for each distance and aid stations have published closing times.
Dogs are permitted on the shuttle, ferry and in the start/finish area but are not allowed on the race course. Age-group awards and finisher medallions are given for all distances. Visit the organization's website for the most recent information.
