The walk to MGM can be divided into approximate thirds. The first third is around BW itself....if you are WAY AT THE END OF THE HALL, you are a third of the way to the MGM Gate. The second third is a path that runs along the canal. Its a pleasant walk about as far as the walk to Epcot. The third part of the walk, and the part that gets me, is the walk around the MGM parking lot to the gates. All that hot asphalt reflecting heat can make this not pleasant. I'd say its a 12 minute walk - alone I can still beat the boat, but if I'm with kids or anyone with trouble walking, I can't.