Hi 'TangoMike', I see what you mean, but when I make these 'Walk the Coast' quizzes I limit myself to only a small way down a river or inlet. I virtually say when we reach a river or long inlet we cross not far up the waterway. In that way we don't actually reach Armagh for I crossed, from County Louth from opposite to 'Warrenpoint' which is County Down. Before reaching County Armagh. If you imagine my 'Walk South American Coast' quiz, when you reach the amazon you would have to walk all the way to Chile before crossing and back to the Atlantic Coast. (I hope that explains how I see it) :o)
Great quiz! When I got to Louth I initially was like "there are no northern Ireland counties with L" before I realised that we had dropped back down, never really knew Down and Louth had a border.
Down doesn't border Louth. Armagh has a 7 mile coastline from Newry to Omeath.