Munising, MI

Grand Island Trail Runs

Sat, Jul 31, 2027

50K, Marathon, and Half along the rugged Lake Superior shoreline of Grand Island.

Race website ↗Volunteer ↗

Already have an account? Sign in to prefill your details.

Distance564 of 600 spots left

50 Mile+$15 in 100 days (Goes up to $190.00 on Feb 15, 2027)$175.00 + fee$186.33

50K+$10 in 100 days (Goes up to $155.00 on Feb 15, 2027)$145.00 + fee$154.56

Marathon+$10 in 100 days (Goes up to $140.00 on Feb 15, 2027)$130.00 + fee$138.67

Half Marathon+$10 in 100 days (Goes up to $115.00 on Feb 15, 2027)$105.00 + fee$112.20

Select a distance to continue.

Where & when

Venue

Williams LandingGrand Island (ferry drop-off)

Ferry from Grand Island Landing, M-28

Munising, MI 49862

Directions Website Where to stay ↓

Start times

Sat, Jul 31, 2027

50 Mile

Cutoff15 hr

6:00 AM STARTSat

50K

Cutoff10 hr

6:30 AMSat

Marathon

Cutoff7 hr 30 min

7:00 AMSat

Half Marathon

Cutoff6 hr

8:00 AMSat

Race-day weatherTypically 76° / 56°

Right now42°, mostly cloudy · wind SW 10 mph

Photos

1 / 28

Photos by: Great Lakes Endurance, Aravaipa Running, Austin Lewis Photos

About this event

Run the rugged, remote shoreline of Lake Superior at the Grand Island Trail Runs, an unforgettable race on a pristine island just offshore from Munising, Michigan. Offering 50K, Marathon, and Half Marathon distances, each course showcases lush hardwood forests, sandstone cliffs, and sweeping Great Lakes views over a mix of singletrack and two-track.

What's included

50K, Marathon, and Half Marathon
Run a pristine island in Lake Superior
Sandstone cliffs, hardwood forest, and Great Lakes views
Presented by Great Lakes Endurance

Ask about this race

Start times, cutoffs, aid stations, shirts, refunds. Answers come from this race's own details.

Race policy: Withdraw by Jul 1 for 75% race credit.

View full policy

Withdraw: 75% race credit through Jul 1, then 50% race credit (injury, illness or family emergency) through Jul 26, then nothing back. Credit is good for 12 months. Credit you used on this entry isn't re-issued.
Pregnancy: Withdraw any time before race day for 100% race credit, good for 24 months.
Transfer: Not allowed.
Defer: Not offered.
Change distance: Yourself, from your registration. Moving up pays the difference.

Stay & travel

Getting there

Host hotel: Holiday Inn Express Lakeview in Munising, overlooking Grand Island (906) 387-4800, reservations recommended. Alger County Chamber: (906) 387-2138. Nearest airport: Marquette (Sawyer), about one hour.