Buena Vista Palace is across East Buena Vista Drive from the back side of the Marketplace end of Downtown Disney. The Wyndham Lake Buena Vista is just up onto Hotel Plaza Boulevard and close to the crosswalk at the front corner of the DTD Marketplace and the Hilton Lake Buena Vista is at the end of Hotel Plaza Blvd. across Buena Vista Drive from the Marketplace. All of those are easily walkable to DTD, as are the Holiday Inn and the Royal Plaza.
Dick Taylor