SINK OR SWIM — Several cardboard crews vie for a top spot in Discovery Park of America’s 2016 Cardboard Boat Regatta. The fourth annual Cardboard Boat Regatta will be held Saturday on the South Lake at DPA. Any team wishing to enter may pre-register for $25 by calling 885-5455. Registration on Saturday will be $35. A captains meeting for all teams is at 9 a.m., with the race to launch at 11. For more information, visit www.discovery parkofamerica.com and click on the calendar of events.