I see another site has 01562 now at Dovesite Caravan Park, Derbyshire. Looking at Google Maps it looks like a bit of an Industrial Estate. That made me wonder if they were still there. I am staying nearby in September and just planning ahead. Will spend my time more productively if it is confirmed they have gone or can't be accessed.
Again looking at Google Maps wasn't sure if they may have been viewable from footpaths nearby if not permitted access which is probably unlikely. Kelvin Hill looks a possibility bt some local knowledge would be great.