The boat to and from MK is very nice. On the way back one night, we watched the Electric Water Pageant from the water.
The boat to the Contemporary also goes to Fort Wilderness, which makes it easy to do activities there, such as Hoop Dee Doo Revue dinner show, horseback riding, bicycling, carriage rides, etc.
I've heard that there is a walking path from WL to Fort Wilderness, too, but am not sure & have never used it.