Strava

RWGPS is pretty good, but it still took me down a footpath in Swanley that was bookended with enormous concrete blocks, and featured more burnt out cars and flytipping than I've ever seen in one place

On my way back from doing Angliru, RWGPS decided that this would be a nice route to take. That's with the 'avoid unpaved roads' box ticked. You can't really tell from the photo, but it was about a 25% gradient.