The cabin loops stretch over quite a wide area. No matter which loop you are in, you will probably need to get on one of the campground buses. I believe all routes stop by the Meadows Trading Post area where the campfire is held. The main pool is here too. There is a quiet pool and laundry facility closer to the cabins. The second Trading Post is near the Hoop-dee-Doo and boat dock to MK.
The campground is large and that's why so many folks rent the little golf carts. The buses do run regularly though.
Hope this helps. You might find a map of Ft. Wilderness over on the camping board.