The first full weekend of each year is traditionally the runDisney Walt Disney World Marathon Weekend. If you’ll be at Walt Disney World, give yourself plenty of time to get to the theme parks in the mornings. Thursday and Friday (5K and 10K) aren’t usually too bad, but delays can be significant on Saturday and Sunday. The half marathon is held on Saturday and the full Walt Disney World Marathon is held on Sunday. Getting to Disney’s Animal Kingdom can be especially problematic.