Poly: Bus from AoA to MK, boat or monorail to Poly.
Wilderness - Fort (FW) or Lodge (WL)?
Fort: Bus from AoA to MK, boat to FW
Lodge: Bus from AoA to MK, boat or bus to WL
*You can also walk to the Contemporary and get on the boat that loops CR - FW - WL.
When you get off the bus at MK, you would follow along towards the MK entrance, but you would not go through the bag check. The monorail station is on the opposite side. The express monorail will only go to TTC and the resort monorail will go to CR, TTC, Poly, GF. The boats are located along the lake to the left as you walk towards MK. There will be signs indicating which boat dock is which with Poly/GF being the farthest from the buses and FW/WL being towards the middle.
If you chose to go to Contemporary to take the boat to WL or FW, you could go to the right after exiting the bus. There are signs to direct you.