GeoGraph - photograph every grid square

A problem square. I tried to access it on 30.1.07 using Newton and Noss Footpath 39, clearly shown on maps heading SSW towards Wadham Beach, but found precious little trace of it - certainly no waymarking etc. Above the field boundary (fence) shown halfway down, it's steep hummocky grass with gorse on the east; below the fence there's bracken and brambles plus gorse, but eventually you come to a forest of (I think) low blackthorn, which looked impenetrable, and where I gave up. I think the only possibilities are sea access (perhaps beaching at Ryder's Hole to the east) or a long haul from wherever's the nearest land access to the foreshore on a falling tide. Good luck!