northern lights. carlingford lough and mourne mountains. county louth. ireland

ancient architecture building carlingford castle colourful country countryside county dundalk europe european fields fortress heritage hills historic house houses ireland irish john king land landscape leinster leisure lough louth medieval monument nature norman old outdoors picturesque public residence rural scene scenic sky skyline slieve tourism tourist touristic tower town traditional travel view world john39aph39s aurora borealis harbour lights plasma night green red atmospheric atmosphere northern mourne mountains magnetosphere ionization colours background