The annual Cardboard Boat Regatta returns to Manchester-by-the-Sea on Sunday, October 13, bringing with it all the fun and antics that go into racing boats made of cardboard. The premise is simple: Participants build boats of nothing but cardboard and tape, and whoever paddles their boat to and from a buoy in Manchester’s Inner Harbor the fastest wins. The event that started out as a backyard party in Manchester 15 years ago now draws spectators from all over and awards trophies for first place, second place, and a handful of people’s choice awards like the Cat-Ass-Trophy.