Wed 21 Oct - strong SE winds resulted in a large chunk of the beach at Thorpeness being washed away, revealing some interesting concrete. These turned out to be slabs with embedded iron lengths in them, protruding and angled up at one end. In total there were five of them. I'm sure they are obstacles to prevent German Invasion barges from landing. A good photo of what they would have looked like can be seen in East Anglia at War 1939-45 by D E Johnson. Today (Thur 22nd) they have again been covered by shingle so was lucky to be able to record them. They are however facing the wrong way, which is a bit of a mystery.