Thousand Islands Half Marathon
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Thousand Islands Half Marathon, 10K & 5K
The event takes place on May 15-16, 2026 in Wellesley Island and Alexandria Bay, New York. It includes the following events:
- Half Marathon (13.1 miles)
- 10K (6.2 miles)
- 5K
- Island Double (5K & 10K)
- Island Super Double (5K & 13.1)
- Virtual options for the Half Marathon, 10K and 5K
The Saturday start/finish for the Half Marathon and 10K is at the Lake Course Executive Country Club, 21496 Club House Dr., Wellesley Island, NY. The 5K start/finish is at Thousand Islands Winery, 43298 Seaway Ave., Alexandria Bay, NY.
Course and logistics
Course descriptions note routes under the Thousand Islands Bridge and along the St. Lawrence Seaway. The 5K is a road course with a short loop around the vineyard on grass. Packet pickup is available at the Thousand Islands Winery and at the country club on the race weekend. Parking is provided at the Lake Course Executive Country Club for the Half Marathon and 10K, and at the Thousand Islands Winery for the 5K.
Included for participants are custom apparel for Half Marathon and 10K entrants, a custom short sleeve shirt for 5K entrants, a custom bib, a finisher medal, post-race food, hydration and aid stations offering water and Gatorade, porta-johns along the course, and free parking. The event is part of the Get Fit Half Marathon Series. Visit the organization's website for the most recent information.
