InstImpres
When my four kids were younger (elementary age and younger), on two different occasions the trips themselves were the surprise. We didn't tell them until two days before we left. One time I made up four word/question puzzles. They each worked out the answer to theirs and then put them together and it said "We're going to Disney World in two days." Another time we planned a trip staying at a value resort. They wanted to stay at the resort with the dragon slide, but I said we couldn't afford it. When we pulled up in front of POFQ they were thrilled. Last year we stayed at the Polynesian. Told them it was a garden view room (money again), they were just happy to be at the Poly. When we walked into our Castle view conceirge room my now hard to impress teenagers mouths hit the floor. The hoop de doo revue was also a nice surprise and I wish I wouldn't have missed the Backyard BBQ when they were younger.
These were the hardest secrets I have ever had to keep. Some of them for as long as a year! At least this time it is only for a week! Have fun planning!