Thousand Islands Half Marathon

The Thousand Islands Half Marathon, 10K & 5K is an annual running event taking place in Wellesley Island, NY, scheduled for May 16-17, 2025. Participants can choose from various race options, including the Half Marathon, 10K, and 5K, as well as virtual versions of each. The event features scenic courses that showcase the beautiful Thousand Islands region, with the 5K starting at the Thousand Islands Winery and the longer races beginning at the Lake Course Executive Country Club.

Runners can also participate in challenges that combine multiple races. The event includes custom apparel, finisher medals, and post-race festivities. Visit the organization's website for the most recent information.