Participants Angela & David Chadwick shared this timelapsed video of them building their buildonsite boat at River Legacy's 25th annual Cardboard Boat Regatta in April 2014 at Six Flags Hurricane Harbor. The duo won the BuildonSite race, racing against 12 other participants. Learn more about River Legacy's 26th annual Cardboard Boat Regatta planned on April 25, 2015 here: http://www.riverlegacy.org/supportus...