Walt Disney World has its own free transportation system, including buses, trams, monorail trains, and boats, which can get you wherever you want to go. If you're staying on Disney property, you can use Disney's transportation system exclusively. In general, allow up to an hour to travel between parks and hotels.
If you're park hopping, consider using your own car to save time. There can be 30-minute waits for park-provided bus transportation. Your parking pass is good at any of the theme parks, and parking is free if you're a resort guest.
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