I remember in the 90's, on my visits to Ireland, we would walk through the grounds from the Dublin Road on a Tuesday night to get to the dance in the hotel. It never bothered us that it was pitch black along that path, we would come back the same way, late as it was. To the left of the path was a huge wall, probably the height of the wall that Carloman2 refers to. A few years later I visited at the hospital, finding it light and airy, with the patients seeming to be well taken care of. Jack Langton