A country in Western Europe, occupying most of the (5/6), the island of Ireland, the most western of the major British Isles is washed from the north and from the west to the Atlantic Ocean, to the south - the Celtic Sea in the east - the Irish Sea and the Straits of St. George, which connects the Irish and Celtic sea. In the north-eastern border by land with Northern Ireland, a country in the UK.. national holidays Cliffs of Moher. Tower O'Brien,