Congratulations! If you're crazy, you're not the only one. Both of our christmas trips to the Fort were booked 499 days in advance. We don't usually plan THAT far ahead, but we learned the hard way 4 years ago when we called in April to try to make reservations for December and were told that they were already sold out for the dates we needed. If you want to go when everybody else wants to go (holidays, spring break, etc), make the reservations as early as you can.