We've done New Year's Eve there twice. Go early and STAY. Get a locker underneath the train station for your after-sundown warmer clothes like sweatshirts, etc. Bring clothes for layering, if the evening is going to be cold. You're going to be outdoors for several hours. The park will be busy, busy, busy. Take it easy. If it's feasible, have a restful restaurant meal to re-charge for the evening. There should be free hats and nosie makers available starting late in the afternoon. If you collect the pins, be on the lookout for special New Year's Eve pins at the pin carts. The final hours before midnight go fast - parade and fireworks. Then at midnight more fireworks. Confetti flies from the buildings on Main Street. After midnight, the monorail, buses, boats run for at least two hours. So you don't have to leave the MK in the first crush of people. Sit on a bench and just enjoy being there. Have FUN!