I believe this is an old gatepost as there is a piece of ironwork in it on the other side, though it does have the appearance of a standing stone. It stands beside the coast path just to the west of Portwrinkle. Incidentally there is a crack through it where the old ironwork has been placed.
Uploaded to Geograph by Philip Halling on 16 April 2011
Photo © Philip Halling, 16 April 2011. Licensed for reuse under this Creative Commons licence