MetroParks of Butler County welcomes you to the 7th annual Crazy Cardboard Regatta. At this fun and exciting event, teams build boats made of cardboard and race in them around the lake! Build your own boat or enjoy the show from the comforts of the shore. Either way, you're sure to have a blast at this fun family event! There will be vendors, entertainment, activities and more! Come watch the craziness or be a part of it!