Eoin O’Riordan Completes His Millennium Swim Around Sandycove Island Courtesy of Ned Denison, Sandycove Island, Cork, Ireland. The Century Swim is the 100th open water swim of the same venue, event or crossing or a non-stop swim of 100 miles or kilometers in length.  Those swimmers are referred to as Centurions. But a Millennium Swim goes well beyond […]