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Swim Marathon

Swim Across the Sound Marathon

August 1, 2026
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.

Support for Cancer Patients

Swimmers have been the backbone to help us raise critical funds that allow us to provide financial assistance to cancer patients and their families in our region. If you are a swimmer or want to support a swimmer or swim team, please click the link below to reach our dedicated swimmer’s website:

Click here to register or donate to a swimmer or team

Click here to make a direct donation toward Swim Across the Sound – Patient Assistance

Click here for Swim Across the Sound Marathon event details

 

Registration for all roles

Helpful Links

2026 Fundraising Leaderboard

See The Leaderboard

Corporate Sponsorships

Become a Sponsor

Donate To Swimmer or Swim Team

Make a Donation

Support for Cancer Patients

We are listed as one of the Top 100 Open Water Swims with the World Open Water Swimming Association!!

Celebrating 39 years on August 1, 2026

A Fundraising Event

By obtaining donations, swimmers help Swim Across the Sound raise funds to provide cancer patients and their families with programs and support. Thanks to the swimmers, boaters, donors and event sponsors, the Swim is able to assist these families at a time when they need to focus on their health and well-being.

For swimmers who may need fundraising support, please call 475-210-7308.

For the Public

Members of the public are invited to join the fun at Captain’s Cove, located at One Bostwick Avenue in the historic Black Rock section of Bridgeport, and cheer on the swimmers as they cross the finish line.

As the swimmers finish, Captain’s Cove Seaport is alive with music, entertainment and a children’s activity area; the boardwalk shops and restaurant will also be open. The swimmers start to arrive at the finish at approximately 2:30 p.m., depending on the weather, and will continue crossing the finish line until 7:00 p.m. An awards ceremony takes place shortly after all the swimmers have arrived at Captain’s Cove.

For more information about how you can get involved, please call 203-576-5451.

Donate To The Swim Marathon

Saturday, August 1, 2026

Boat Owners Needed

We need power and sailboats for the Swim from Port Jefferson, NY to Captain’s Cove Seaport, Bridgeport, CT

  • Motor or Sail Boats need to be 20’ and up
  • Free dockage available at Port Jefferson on Friday, July 31, and at Captain’s Cove Seaport on Saturday, August 1, by request and subject to availability
  • Free Captain’s Cocktail Reception at Danford’s on Friday, July 31st
  • Entry into the Post Event party at Captain’s Cove Seaport following the marathon included
  • Some expenses may be tax deductible

To register or volunteer, call 203-576-5451 or sign up below.

Boat Owner Sign-Up Here

Health & Safety Notice

Your health and safety and that of our community remain to be our top priority.
We ask that if you have any symptoms suggestive of COVID-19 or any other infectious virus prior to the event please do not attend.

A Look Back at 2025

Through the collective spirit of our swimmers, boat captains, sponsors, and volunteers we achieved unprecedented milestones:

  • Extraordinary number of swimmers: An astounding 224 individuals.
  • Phenomenal number of boaters: More than 100 dedicated boaters.
  • Record funds raised: An incredible $790,000!

We are grateful to all who participated and shared their commitment and belief in our mission to support cancer patients and their families.

Take a look at some photos from the day HERE:

We also received tremendous news coverage and want to share those with you HERE