They don't do a whole lot with the parks for Halloween, so I don't know if you'll notice big differences, even on your check-out day.
Obviously Haunted Mansion is the biggest change - I hate when it's closed!
- but other than that, there really aren't many noticeable decorations for that holiday. They do the Halloween party stuff in DCA, but even then I've never seen residual signs of the party.
The only thing is that *sometimes* they leave the projection of a Jack-O-Lantern on California Screamin' even when the party's not in session, as long as it's dark enough. It's purty cool!
