We will be in WDW over Christmas, and this will be our first visit during a more chilly season, and don't know what to expect. I realize it's Florida, and we could have temps in the 70's or 40's etc., but if we do hit a cold snap, and are in the parks with much cooler weather, how is it inside the attractions? Of course attractions such as the Hall of Presidents would be nice, but what about Pirates of the Carribean and the like.