Are these really footpaths?

I don't think the walls on this are at all correctly aligned with the castle itself.

unmarked water

Tons of missing streets here.

Is this a path or something here?

Borders of school grounds are approx, can anybody with local knowledge make them accurate?

Parking

Does this footpath not link up with a road or anything?

This road doesn't seem to exist on the aerial map, and in fact goes through many buildings.