The best way to go is to take the monorail to the CR. Than go out to the dock area and you can take a boat to the WL, they come like every 5 minutes and it's a nice but quick ride over there.
Just walk to the TTC and catch a bus from there. It's not a long walk at all.
Last trip we were unable to get a bus to the WL or AKL from the TTC. They told us to go back to the MK or another park to get there because there were no direct busses to any of the resorts.