We like the 1900 loop. It's near the canal and also a short walk to the golf cart trail at the Four Seasons and the fancy neighborhood. We've eaten at Capa, the Michelin starred Four Seasons rooftop steakhouse It was amazing. We drove from the campground but we could walk too. Has anyone walked? Is it allowed?
I think we might try to walk over and eat at the bar.
I am/was a big walker at the Fort,
@ScarletFire.
The issue I see with your idea is that there is still a canal/waterway to get over from 1900 to the 4 Seasons Golf Club paved golf cart paths. Even if you could get across the water, you're back behind the CM-only areas of garages etc. that are next to the horse ride corrals and pens. Those are No-Go areas for guests, I'm sure.
A viable alternative, however, is to walk by the Outpost Bus Stop and old FW Kennel on the sidewalk that crosses over the road into the 4 Seasons/Golden Oaks area by the FW bus gate. However, once across the road and into that "land", you have to turn right and follow the sidewalk nearly up to the Golden Oaks/4 Seasons gate, then hang a left to walk down the sidewalk to the 4 Seasons Resort itself (Google Maps/Earth is my friend here). If you were to turn left after leaving FW property, you end up at the 4 Seasons Golf Club and while there are paved golf cart paths to "cut the corner" to the resort, I don't know if walkers are allowed on the course (that's why the neighborhood has sidewalks (not golf cart paths)).
So the long way around would work but I don't know about any shorter route.
Bama Ed
PS - when the Exercise Trail was still there between FW and WL, I would walk it in the early morning and then down the WL entrance road across World Drive to the TTC. After that I would follow the old Marathon route under the waterway towards Contemporary, hoof it to the MK gate, then back to the Contemporary Dock for the resort loop boat to FW (which is no longer an option). This fall when we are there I hope to boat from FW to MK and then walk the new sidewalk and canal bridge to GF. May have to pick up the monorail at that point because of Poly DVC construction where the old Spirit of Aloha was. WDW is not long walk friendly but there are places you can get around to.