Okavango Delta
If you wanted a candidate for most unique safari area, the Okavango would top the list. There are not many other places in Africa that are as remote where you can watch wildlife as you glide noiselessly past in a dugout canoe, navigating by means of waterways instead of roads.
But it's also this inaccessibility that limits the amount of places that provide wifi when you stay in the Delta, because it's really tough terrain to be able to get the technology to where you need it.
So most of the accommodation that provides wifi is on the fringes of the Okavango in the town of Maun, but there are a few places in the delta itself that are able to make it available. See the full list here of Okavango Delta accommodation where you can get wifi, with the results of speed tests available on request...