Jonathan Applequist recently celebrated the launch of the USS Fort Worth, a littoral combat ship he helped design for the U.S. Navy as the Lead Naval Architect for Gibbs & Cox. But long before he began designing these fast and versatile Navy ships, Jonathan’s first boat to design and build was “The Last Minute,” a cardboard boat in the early ‘90’s for River Legacy Foundation’s annual Cardboard Boat Regatta.Where will cardboard take you? Find out by joining in on the fun of the 24th annual Cardboard Boat Regatta on April 27 at Six Flags Hurricane Harbor. Registration fees range from $50 to $80. Entry deadline is April 15.The Regatta challenges amateur boat builders, youth and adults alike, to build, navigate, and float (or sink!) their cardboard creations in Hurricane Harbor’s Wave Pool. Many trophies and bragging rights are on the line including, the Steve Calloway Legacy Award for Best of Show, the Rah Rah! Award for most spirited crew and the Titanic Award for most spectacular sinking. And, if you just can’t win an award on your own, you can always Bribe the Judge for one.Groups, companies and organizations can step up the Regatta challenge by participating in the Team Challenge, which combines the boat races with NEW competitions this year that include a horseshoes tournament and 3-Point Basketball Hoops Shoot. Entry fees for both sports are $50 each.Not every boat is fast enough to make it to the finals to brave the waves. But once again this year, adult division boats can take the Brave the Waves challenge for $20. The first 15 boats to sign up at the River Legacy booth at Hurricane Harbor will get five minutes to test their boats against the raging waves of the Wave Pool at the end of the event.Regatta event-day activities include a children’s area featuring the Mini-Boat Regatta and Hook’s Lagoon; unlimited rides on the Tornado; SkyCoaster Swing; Build-on-Site boats; Whale Sail; and concessions. During the Mini-Boat Regatta, children ages 4 to 12 sail their mini boats to victory by blowing them down a rain gutter. Mini-Boat kits can be purchased at River Legacy Living Science Center or at area Scout shops. Cost to enter the Mini-Boat Regatta is $5.The Cardboard Boat Regatta is a fund-raising event presented by River Legacy Foundation and the Arlington Parks and Recreation Department. Proceeds from the event benefit the educational programs of River Legacy Living Science Center and improvements to River Legacy Parks.Event sponsors are Moritz Dealerships, Spring Creek Barbeque, Star-Telegram, Bates Container, Randol Mill Pharmacy and Six Flags Hurricane Harbor.For more information about the 24th annual Cardboard Boat Regatta, call (817) 860.6752, ext. 107 or visit http://www.riverlegacy.org.