The Polar Plunge organized by the Warren County Sheriff’s Office to raise money for Special Olympics Iowa is today. Anyone interested can register at Lake Ahquabi in Indianola from 11 to noon, which costs $75 and includes a t-shirt and meal. Teams and individuals can dress up in costumes to jump into the cold temperatures of the lake, with prizes given out for best individual and best team themed costumes. After the plunge, a reception will be held with a meal at the Warren County Administration Building.