We are at WDW the whole week prior to this however my sister (30) I'd throwing a fit because she wants to go here for Harry Potter things. We have a variety of ages of kids comin with from little to teens. Is it worth going to the park for a day or wI'll we just be waiting in line all day. Any advice go make this day as smooth as possible would be so appreciated. (Some of the little kids may not come this day and stay with Grandma )