Lots of COR on Sunday. Mown grass (on top of the Severn estuary embankment), mud (track by Oldbury), gravel (Sharpness canal tow path), even some concrete slabs (another part of the embankment). And an incredibly overgrown path (taller weeds and much narrower than in Kim's photo above, along with sections of limbo under the tree branches) which, to my surprise, took my inside the fence of the defunct Berkeley nuclear power station.