Hundreds jumped into the cold Ohio River at 11:30 a.m. on Saturday morning for the Pittsburgh Polar Plunge, an annual event raising money for the Special Olympics. Plungers on the North Side, including bare-chested men and others in costumes, pledged to "Freezin' for a Reason," raising a minimum of $50 for person to enter the cold waters. Check out our slideshow by photo intern Luke Thor Travis.