It's killing me!! We've been keeping the secret from our boys (10 and 14) since November!! I'm still not sure when we are going to tell them. I think the day before we leave. My youngest has been asking to go to the beach on vacation this year, so I'm thinking we might use that as a way to tell them. "We know you wanted to go to the beach, but we couldn't decide which beach to go to. So we decided to go to Blizzard Beach this year".....and then wait for the reaction. 
