Although it's probably a bit too late to start a team and reach the gold level of raising $1200, it's definitely not too late to register. The $100 fee is well worth it - since it began in 3 years ago, the Polar Plunge has recruited 1500 plungers, who have raised a total of $327,000.
If the good cause isn't enough to pique your interest, all plungers also get admission to Aquatica, an All-Day Food Pass, an official event t-shirt, and two spectator passes. What are you waiting for? It's just a little bit of cold water!