Winter is quickly approaching and so is the return of a holiday classic to the National Aquarium! Beginning November 15, 2008 visitors are invited to embark on a cold winter’s journey that’s sure to warm your heart, and to make you believe. The Polar Express™ 4-D Experience transforms the holiday movie into a 20-minute, action-packed movie experience that will keep young viewers on their edge of their seats through special effects that are exclusive to the 4-D theater experience!