In reply to simes303:
I suppose it's the size of the area. Their actions led to access to mountain, moor, heath and down and, thanks to the BMC, cliffs within these areas. Cliffs within small areas of private land are, to most, a different thing. There's no particular rationale for declaring all rock faces public property unless you go down the avenue of declaring all natural features public...and I'm not saying I disagree with that but practically....