In the heart of the Wicklow Mountains lies a glacial valley with two lakes, famous for its beauty and its “city of seven churches.” Founded as a monastery in the 6th century, the site is noted for its distinctive tower, decorated crosses and 11th–12th-century churches.
Glendalough is a glacial valley in County Wicklow, Ireland, renowned for an Early Medieval monastic settlement founded in the 6th century by St Kevin. From 1825 to 1957, the head of the Glendalough Valley was the site of a galena lead mine. Wikipedia