We found these two boulders on the beach at Robin Hood's Bay. They could well be glacial erratics. There was always a stone opposite the Radcliffe Science Library in Oxford that was a glacial erratic of Shap Granite brought back from Filey, I think. It shows ice moved in that direction. I suppose they could have been brought as sea defences but sea defence boulders are usually all of the same type. Also the coast is not being defended!
