Like Karebear1 said, you can walk to MGM from the Epcot resorts, though the walk is a bit of a hike. We did it once from the Swan and I think it took about 20 minutes.
You 'could' walk from AKL to DAK and I bet it would be no longer than the walk from the BC to MGM. But I do not believe there is a path. It is a very, very simple drive, taking less than 5 minutes.