Its going to be a busy day at Magic Kingdom even without Extra Magic Hours to lure Disney resort guests. First, a lot of people are arriving for a weeklong vacation. They travel over the weekend and naturally head to the Magic Kingdom on Monday for their first full day. The later close is also attractive to casual vacationers who equate longer hours with being able to accomplish more during the day. Of course, this isnt usually true because heavier crowds lead to longer lines, more congestion in common areas, and an overall less pleasant touring experience. With no Main Street Electrical Parade scheduled either of the next two nights, Magic Kingdom will also be popular with anyone that wants to see it. All of this adds up to a day that will be busier than the below average overall crowd level insinuates. If you are headed to Magic Kingdom despite the warning, you can still have a successful and fun day if you arrive prior to Park opening and head straight to Fantasyland, the headlining Mountain rides, or whatever you feel is most important on your itinerary. You may want to take an afternoon break from 1pm to 6pm or so to rest up for the nighttime spectaculars. This is the busiest and hottest part of the day. Still, youre much better off waiting until Tuesday, Wednesday, or Friday to visit because Magic Kingdom will be less crowded.