Welcome, and thank you for taking the time to learn about the IOS Invitational. Hosted by Seacoast Paddleboard Club, the IOS Invitational is grueling 14+ mile round-trip paddle board crossing to the Isles of Shoals which are located approximately 6 miles off the coast of Maine and New Hampshire. As one of the most challenging paddle board events in New England, this team challenge serves as a charity paddle for Big Brothers Big Sisters of NH. If you’d like to register to paddle, please take a minute to familiarize yourself with our paddle requirements. For volunteer, sponsorship or media inquiries, please give us a call at 603.498.8198 or email us.