We are also planning a surprise trip for our DD (age 9). I went into it planning to wake her up the morning we leave and surprise her, but on further thought, I realized she'd want some time to pick out what she wants to pack (not clothes per se, but her little toys, books and miscellany that she brings in her carry on). So then the plan shifted to telling her after school the day before we leave. But now as we're getting closer and some things have come up on the calendar at home, I think I'll need to back it up a little more to give her time to understand that she'll be missing a couple of things here at home while we're gone (one I think she'll be slightly disappointed about but hey, it's a pretty good trade off!

). Plus I need to give advance notice to her teacher and don't want to do so before we've told DD so the beans don't get spilled on us

.
I still think it would've been very fun an exciting to wake her up with the surprise but logistically, I think telling her two or three days ahead will work out better. Now if I can hold the secret a little longer - I've almost slipped about 100 times over the past 6 months

.