Just walk to the TTC. There is a bus that goes to WL & FW.
or
Take monorail to CR, then blue boat over to FW. Boat ride is maybe 5 minutes & the pony rides are just behind Hoop Dee Doo/Trails End.
or
Go to MK (boat or monorail) and take the larger green boat to FW. Go to the boat dock that says "Fort Wilderness/ Wilderness Lodge.