Grand Island Trail Marathon
Munising, United States • 25 Jul 2026
Grand Island Trail Runs
The event takes place on Grand Island in Lake Superior. The course follows the perimeter trail of the island counterclockwise. It passes Murray Bay and Duck Lake. At three miles, the route goes east into the Tombolo, up into the island's "thumb," and back along Trout Bay. Runners then ascend the eastern cliffs, which offer views of the Pictured Rocks National Lakeshore.
The northern half of the island features 300-foot colored Jacobsville sandstone cliffs and North Beach. The return trail on the western shore provides vistas of Lake Superior. Much of the trail is shaded by lush hardwood forests. The trail includes single track, two track, and narrow dirt roads.
The event is operated by Aravaipa Running, continuing the Great Lakes Endurance series of trail running events in the region. The start/finish is at the Grand Island Boat Dock in Munising, Michigan. The available race distances are 50K, Marathon, and Half Marathon. Visit the organization's website for the most recent information.