Rw, I have nude walked the footpath along the Cuckmere Estuary from near the Inn down to Cuckmere Haven with John and two other friends a couple of years ago. When we got down to the sea, we settled in for some sun, a few shared beers and a swim, nude the entire time. A few giggles near the carpark as we disrobed at the beginning of our walk, but no one paid us much bother from then on. Certainly not on the beach which was lovely. Then there's the entire stretch eastward along the Seven Sisters which make for a great nude hike on the right day. Ours was a right day so we did! Great memories.
-Dan