In October 2008 I flew to California for the Halloween weekend to go to Disneyland.
The first day I arrived in the evening, so I wandered around the Downtown Disney area to get a feel for Halloween. It was walking distance from the hotel, and it was a nice way to fill the evening. They have a lot of decorations and a good variety of places to eat. I was especially intrigued by the variety of special Halloween themed caramel apples only available during this time of year. What? You don’t consider a caramel apple a meal?
One great thing about Disneyland is that everything Disney is right there. Disney World is great too (huge and a lot to do), but you can literally walk to all the Disneyland areas because they are so close together. This is especially nice when you are only there for a weekend. I had 1 full day in each park and then a third day to bounce between the 2 parks before heading home.