Went past the Tree houses on our way to SSR for a brief stay this past week, and noticed that there was someone in the guard shack, lights were on on several of the Tree houses, and there were a number of vehicles in the parking areas. Also saw a sign posted at the gate: "Cast members only" Being the inquisitive type, I asked the front gate guard at SSR about it, and he said that they {tree houses} were being operated by someone other then Disney. Knowing how these cast members, guard shack folks or whomever, have a tendencey to stretch the truth or just out right make up a story, I asked 6 other Cast members at various spots throughout SSR, and I got several versions of a pretty similar story. {but not the part about someone else running the place} They are apparentley housing Brazilian students who are part of the Disney CM exchange program in the Tree houses at this time, but not renting them out to guests.......in case anyone was wondering.