evidence: Carlingford Lough facts for kids Carlingford Lough (Irish: Loch Cairlinn; Ulster Scots: Carlinford Loch or Cairlinfurd Loch) is a glacial fjord or sea inlet that forms part of the border between Northern Ireland to the north and the Republic of Ireland to the south. On its northern shore is County Down and on its southern shore is County Louth. At its extreme interior angle (the northwest corner) it is fed by the Newry River and the Newry Canal. [...] The Carlingford Lough Ramsar site (wetlands of international importance designated under the Ramsar Convention), is 830.51 hectares in area, at latitude 54 03 00 N and longitude 06 07 00 W. It was designated a Ramsar site on 9 March 1998. It is a cross-border site. The northern shore is in Northern Ireland and includes the most significant mudflats in the lough, and an area of salt marsh. The southern shore is in the Republic of Ireland. At the mouth of the lough are several small rock and shingle islands which are of importance to terns. The Ramsar Site lies between Killowen Point and Soldiers Point on the northern shores of Carlingford Lough and the landward boundary coincides entirely with that of the Carlingford Lough Area of Special Scientific Interest and the Carlingford Lough Special Protection Area.