Swim Across the Sound 2026

IMPORTANT UPDATE: Due to recent damage sustained at Danfords Marina in Port Jefferson, we have had to adjust our traditional route. To ensure a seamless and safe experience for all participants and volunteers, we are moving the entire event to the Connecticut side of the Sound this year. 

While the course will look a little different, we are excited to maintain the full schedule of events you look forward to each year.

We are working hard to finalize the specific course details, and we will share those updates with you as soon as they are available. We truly appreciate your flexibility and your continued dedication to the Swim Across the Sound and the patients we serve.

HISTORY OF THE SWIM: Thirty-eight years ago, five Boston College graduates swam across Long Island Sound, raising $5,000 to help cancer patients. From that single, focused mission, a powerful movement has emerged that now raises hundreds of thousands annually.

These funds provide a vital safety net for cancer patients and families throughout the Fairfield Region—covering essential living expenses like rent and transportation to treatment, while also providing no-cost cancer education, screenings, and support groups regardless of where patients receive care.

Swimmers are the backbone of this event. They help us raise critical funds that allow us to provide financial assistance to cancer patients and their families in our region. 

To learn more about the Swim Across the Sound Marathon, please visit our main website at: www.swimacrossthesound.org

For more information on volunteering as a boat captain, swimming, fundraising support, or joining us as a volunteer either on the water or at the Cove, please contact Amy.Knorr@hhchealth.org or call 475-210-7308.