There are 3 (I think) sets of busses that circle through Ft Wilderness, Purple, Yellow and Orange (they will detail ALL of it when you check in) but, being in the cabins, the Purple busses will take to the Outpost and the Settlement which in turn can get you to other "Points Disney"
Will you have a car? What we did was take Disney transport to MK and Epcot, and drove everywhere else. DS and I did take the bus to AK one day, and it was fine.
We are from Mass, and our 6 year old LOVED hunting Armadillo, checking out the Peacocks, riding the busses (really, he loved them). What was intangible to him, was the EXTRA room. he slept on the bunk beds, so we could put him to bed, and not have to worry about waking him.
There is the Electrical Water Pageant that you can see from the beach at 9:45, the Campfire, Petting Zoo, Ferry service to the MK and Contemporary and Wilderness Lodge.
There are a couple of cabin threads over on the Camping Board as well, take a stroll over and check them out too.