Thousand Islands Half Marathon, 10K & 5K

Race Overview

Take in the famous views of the Thousand Islands and the Thousand Islands bridge. Once again, we will be offering the 5K on Friday evening at the Thousand Islands Winery in Alexandria Bay. On Saturday, we will offer the 10K and Half Marathon on Wellesley Island along with the post-race festivities and awards ceremony.

• Event Date: 2026-05-15
• Location: 21496 Club House Dr., Wellesley Island, NY
• Race Options: Half Marathon, 10K, 5K
• Ambitious Challenge: Consider the Island Double (5K & 10K) or the Island Super Double (5K & 13.1M)

Race Weekend Details

For 2026 we are returning to the Lake Course Executive Club House (21496 Club House Dr.) for the start/finish for Saturday's Half Marathon & 10K similar to years 2020-2023 & 2025.

Community Impact

Great views, great courses...always best swag plus we get to help the great people of Alexandria Bay as well as the ACS Booster Club!

Additional Information

• Part of: The Get Fit Half Marathon Series
• Post-Race: Awards ceremony and festivities
• Swag: Excellent race swag provided
• Registration Link: Register Here