Ohhh I kept that secret last year from my kids ages 8,6, and 3 at the time.
I didn't say anything for a long while. They were told we couldn't do Disney this year as it wasn't in the budget. They were very disappointed but we told them we would think of something else to do instead.
About 2 months before the trip my DH and I started to talk about "going to Amish country". As you can imagine, that wasn't on the top of the kids 'to do' list! As it got closer, I would get online and look at things to do in amish country. I alsways looked for the most boring (for kids) thing to do. One of my faves is when we talked about how wonderful it would be to go to the quilting museum! I talked about how much fun I was going to have shopping in Lancaster county too. (They HATE shopping with me!) And darn it the hotel we found didn't even have a pool! heh heh
Since they thought they were going somewhere, they didn't think it was strange that the suitcase were packed and the dog went to the doggie hotel. we started off, still talking about our drive to PA. When we got on the turnpike, I said to my DH, You know, I really don't want to go to Amish country today" He went along and said, "Yeah, me either" Then I said "Kids where would you like to go today if we could go anywhere you wanted?" (I KNEW what they would say) of course they all yelled "Disney World!" So then I said, "well, there is the airport, let's go see if they have any tickets left..." DH turns off the pike toward the airport. At this point the kids think we are faking and say,"Stop it stop it...let's just go to PA" DH pulls up to the curb of the airport and we turn and yell, "Surprise!!!! We are going to Disney World today! You will be at the Boardwalk tonight!!!"
All I can say is they were thrilled and we had a wonderful trip. It was a HUGE secret to keep and I don't know if I could ever pull it off again. Of course when the day comes that we really go to Amish country, I'll bet they will think we are going to WDW!
Have fun!