There is a mini golf next to Blizzard Beach with 2 coarses, you could take the Blizzard beach Bus during the day and walk over there.
There is also Fantasia Golf w/ 2 coarses at the entrance to the Boardwalk, Epcot resort area loop. I guess you could take the bus to one of those Resorts and walk over. The walk would probably be a little farther than the Blizzard beach ones.
I have played them both and both are very fun. You usually get a discount if you have a disney Visa or annual pass and other various clubs, check with the coarse.