Community & People 2012 Arctic Plunge Published March 5, 2012 at 12:39 pm The 10th anniversary of the Arctic Plunge on Long Lake was held Saturday, March 3. Hundreds of jumpers raised money and plunged into Long Lake in front of thousands of spectators. Photos by Elizabeth Sias The Color Guard The Judges Table The Flintstones made an appearance. Batman and Robin capture Catwoman. Batman takes the plunge. Army Reserve Officers' Training Corps Austin Powers Isanti Mayor George Wimmer Oak Grove Fire Department Captain Morgan made an appearance at this year's Arctic Plunge.