So we just got permission to take my baby sister (she'll be 13) to WDW in September. It's our second trip (my husband and me) but our son (he'll be 18 months) and my sisters first trip. We want to surprise her and make it special, we can't decide how we want to tell her. Obviously we have quite some time but any suggestions would be appreciated. Also I should mention we're experts of Disneyland. We've had passes for the last 7 years and my sister has had a pass for the last 5. We were thinking of either giving her a box on hints on her birthday or telling her once we got to the airport. Any Suggestions of how to surprise her as well as must do's at WDW are welcome! TIA!