Taking the plunge: Dressed in a Superman costume, Ken Dingler of Perryopolis dives into the river during the New Year Polar Bear Plunge at the Mon Wharf. An estimated 500 or so brrrrave (crazy?) souls started the new year with a splash, jumping into the Monongahela River from the Mon Wharf this morning. The water temperature was 37 degrees — or 3 degrees warmer than the air temperature of 34 degrees. (Photo by Nate Guidry/Post-Gazette) #Pittsburgh #PGH #412 #PolarBearPlunge #PolarBearClub #PGPhotos