Actually from the the All Stars there is a sidewalk that goes all the way to Coronado Springs and back...you would pass McDonald's and Blizzard Beach/Winterland Summerland and then down to Coronado Springs. It is a bit of a walk but there are wide sidewalks and cross walks at the All Stars exit to McDonald's area as well as the Coronado Springs area. I see runners and sometimes conventioners taking the walk often.
Liz