Tons of misinformation in this thread being spread all over the place. The official FAA No-Fly zone DOES NOT cover the entirety of the Walt Disney World Property. The shaded segment of the image below is the actual official No-Fly zone. The geographic center of the zone is just south of Contemporary resort and spans out 3 nautical miles from that point as shown below. That is why you see helicopters flying over the southern side of Epcot and over DHS and DAK. All of those areas are outside the official FAA No-Fly zone.
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The exact center of the 3NM radius area is at the location of the red pin on the island to the south of the Contemporary Resort.
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There are also lots of temporary ones that pop up for sporting events and the like as well. If you go to the FAA website that lists them all right now you can see the one off the eastern coast of Cape Canaveral for the planned rocket launch.
The details of the Walt Disney World one originally enacted as a Temporary Flight Restriction or TFR and made permanent in 2014 can be found at: