Last year in September DBF and I wanted to go to Winter/Summerland in the evening after Blizzard Beach was closed so we asked the front desk how we would get there and they told us if to just ask the Epcot bus (if I recall correctly) to stop at BB on it's way to the park. So that's what we did and we got there with no problems! When it was time to head back to the resort we waited at the bus stops and the bus came and picked us up. This was well into the night too, around 10:30 when we got picked up.