Young pirates board the Sea Gypsy in the Oak Bluffs Harbor armed with swords, eye patches, and a full vocabulary of sea-worthy words, with Capt’n Flint (also known as Jeremiah McCarthy) at the helm. Pirate Adventures Martha’s Vineyard offers a day of sea fun for wee pirates with names like Cutlass Cole, Wild Man Willie and Osprey Olivia, who discover a treasure map, fight a water war with a treasonous pirate, and haul of a treasure chest.