
Mackinac Island Great Turtle Half Marathon & 5.7 Mile is a running race on October 24, 2026 in Mackinac Island, MI, with an entry fee of $70.
Join us for the 2026 Great Turtle Half Marathon and 5.7 Mile - one of the most scenic trail events in the country! Enjoy the beauty of Mackinac Island's Fall season running and walking the interior trails and shoreline during the last open weekend of the season. This is the 30th anniversary of this iconic Mackinac Island event!
All who register will enjoy a great garment in the Great Turtle tradition, a unique commemorative Turtle medal, goodies after the race and fun festivities! After the race, enjoy Halloween fun at Mission Point and Downtown Mackinac Island for adults and children, great end-of-season sales in the downtown shops, or just spend time enjoying the peace and serenity of the Island's interior!
Live forecast from the U.S. National Weather Service.
Race day
Saturday, 10/24
High
62°
Low
50°
Conditions
Mostly sunny
Chance of Rain
15%
Wind
10 mph
Population
663
as of 2023
City Elevation
792 ft
Nearest Airport
PLN
Pellston Regional Airport of Emmet County Airport · 21 mi
Time Zone
Eastern Time
From Endurance Grid
A small town race. Lodging near the start could be limited, so book early.
Every finish line starts with a single decision. Claim your spot at Mackinac Island Great Turtle Half Marathon & 5.7 Mile, put it on the calendar, and turn “someday” into a start date.
3
Days to train
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Mackinac Island Great Turtle Half Marathon & 5.7 Mile
Oct 24, 2026