The Essex one I traced from the dotted line on NPE. I'm not sure about 12 miles for county boundaries - I don't think Essex would want to have to maintain it's own navy to repel Suffolk encroachers for example.
Having said that, I think I read somewhere that UK beaches below the high water mark are Crown property, so perhaps the county councils just look after them for the Queen? Ed _______________________________________________ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
