Grand Island Trail Marathon

Grand Island Trail Runs : Munising, Michigan

The Grand Island Trail Runs take place on Grand Island just offshore from Munising, Michigan. The event offers these distances:

• 50K
• Marathon
• Half Marathon

Courses follow the island perimeter and interior trails, featuring singletrack, two-track, dirt roads, and sandy beach. Notable landmarks include Trout Bay, Echo Lake, the island tombolo, and colored Jacobsville sandstone cliffs with views toward the Pictured Rocks National Lakeshore. Much of the trail is shaded by hardwood and pine forest.

The 50K uses the full perimeter and an inland section to Echo Lake and the summit. The marathon follows a similar route around the island. The half marathon is a scenic loop along Murray Bay, Duck Lake, the tombolo and Trout Bay before returning along the western coast.

Aid stations are provided on course. 50K aid coverage includes five stations with two stations visited twice. The marathon shares most 50K aid stations; the half marathon has two aid stations. All runners are required to carry a 20 oz water bottle or other functional hydration system that can be refilled at aid stations.

Logistics include shuttle transport to the ferry dock and ferry transport to the island. Race numbers also serve as round trip shuttle and ferry passes. Entrant limit for the event is 500 runners. Drop bag storage is available near the start and finish. Age group awards and a finisher medallion are offered. Visit the organization's website for the most recent information.