Manchester-by-the-Sea’s annual Cardboard Boat Regatta returns on Sunday, October 8, and it’s just as funny as it sounds—participants build boats out of cardboard and duct tape and see who can paddle the fastest without sinking. It started as a backyard party in Manchester 14 years ago, and now draws spectators and participants from all over the region. There’s no charge to participate, and races take place at the boat launch behind town hall. They’ll give awards for first place, second place, and kids’ first place, along with a few peoples’ choice awards.