Make like a polar brrrrr, oops I mean bear and take a plunge into Lake Michigan.  On Sunday morning at 10:00 you can support the Special Olympics and bring your team to North Beach for the annual Polar Plunge.  Each participant is asked to raise at least $100.00 with the top three fund raisers taking home prizes.  Afterwards, from 11:00 - 2:00 join in the fun with a meltdown party in a heated tent to take the chill off of the day.  Registration is at 9:30 am with the plunge taking place between 10:00 and 11:00.  Attendance is free.  Take a leap and help the Special Olympics, or land lubbers can just sit on the beach and watch the fun.