10. Arrive Too Late
The Magic Kingdom is a crowded park, especially during the summer months and other busy seasons. The park tends to be the least crowded in the morning, especially when Disney resort guests are taking advantage of Extra Magic Hours. Arriving in the afternoon can cause your group to run into crowds, experience long lines for attractions, and have most of the lunch destinations completely full. Head to the park as early as you can to beat the crowds and check off some attractions on your list.