The Slieve League Cliffs in Donegal, Ireland are some of the highest and most spectacular sea cliffs in Europe. Located on the south-west coast of Donegal, these majestic cliffs rise up to an impressive 600 meters (1,970 feet) above the wild Atlantic Ocean. The
From Wikipedia
Slieve League is a mountain on the Atlantic coast of County Donegal, Ireland. At 601 metres (1,972 ft), it has the second-highest sea cliffs in Ireland, after Croaghaun, and some of the highest sea cliffs in Europe.