Ключевые слова: aerial, ancient, ardara, atlantic, bawan, castle, celtic fort, century, construction, county donegal, defense, destination, donegal, donegal castle, doon, doon fort, doon lack ring fort, doon lake, drone, dun, fort, heritage, historic ireland, historical, ireland, ireland castle, ireland ring fort, irish castle, irish ring fort, iron age, island, island fort, lake, landmark, lough, lough doon, national, portnoo, refuge, ring, ring fort, round, site, stronghold, travel, wall, walls, water, way, wild,