First and foremost, you have the Haunted Mansion Holiday. The classic Haunted Mansion is given a Nightmare Before Christmas overlay that starts with the Halloween season celebration and lasts through Christmas. This is probably the most popular attraction in the park that has a special holiday theme, so it’s probably worth hitting, or at least grabbing a FastPass, early. If you’re there at rope drop, go there first. As always, the highlight is the gingerbread house that is built from scratch every year. This year, it celebrates the 50th anniversary of the Haunted Mansion.
Article source: https://www.cinemablend.com/news/2486050/disneyland-at-christmas-best-tips-and-tricks-for-visiting-during-the-holiday