There are several ways:
Boat from Wilderness Lodge to Magic Kingdom, then Monorail to Polynesian, Bus to Studios from Polynesian.
Boat from Wilderness Lodge to Contemporary, then Monorail to Polynesian, Bus to Studios from Polynesian.
Bus from Wilderness Lodge to Magic Kingdom, then Monorail to Polynesian, Bus to Studios from Polynesian. OR Bus from Wilderness Lodge to TTC, then walk to Polynesian, Bus to Studios from Polynesian.
(They have been playing around with this route back and forth. The last I heard the bus goes from Wilderness Lodge directly to Magic Kingdom, however for the longest there was a bus from Ft. Wilderness to Wilderness Lodge to TTC)
I have caught a boat as early as 6:30 in the morning from Ft. Wilderness to Contemporary, and that boat runs Contemporary, Wilderness Lodge, Ft. Wilderness, Contemporary.
The boat that goes directly to MK runs Ft. Wilderness, Wilderness Lodge, MK, Ft. Wilderness. That boat seems to start about 7am.
Carol