The Republic of Ireland lies in the north Atlantic Ocean and is separated from Britain by the Irish Sea to the east. The northeastern part (Northern Ireland) is part of the United Kingdom. The country has a central plain surrounded by a rim of hills and mountains offering some of the most varied and unspoilt scenery in Europe. Quiet sandy beaches, semi-tropical bays warmed by the Gulf Stream, and rugged cliffs make up the 5600km or 3500 miles of coastline.
In County Dublin, part of the province of Leinster, Dublin lies nestled around the mouth of the river Liffey and Dublin Bay on Ireland's east coast.
Ireland enjoys a temperate maritime climate, due mainly to its proximity to the Atlantic Ocean and the presence of the Gulf Stream. Known as the Emerald Isle, Ireland is so green because it receives a lot of precipitation.