The hill is to the west of this point, NE of the substation.
The fencing now skirts the flooded area. Current Bing imagery shows it well.
I believe this is a PRoW and if so it's probably been legally diverted. I intend to check this out. Bexley online data is not definitive but should be more up-to-date than what OS shows.
I've developed the OSM data in this area and have more to do.
