(VA) (Fairfax County Parks) All aboard for a train ride on the Holiday Express. Take a spin on the Carolers Carousel, play Gingerbread Man Golf or warm yourself by the fire and cook s’mores as you usher in your holidays. Families will enjoy a visit with Santa, hot chocolate and candy canes. Passes can be picked up at ice cream parlor the day of the event.  Ages 2 to Adult.