Slieve League is a mountain on the Atlantic coast of County Donegal, Ireland. At 601 metres (1,972 ft), it has sekond of the highest sea cliffs on the island of Ireland. Although less famous than the Cliffs of Moher in County Clare, Slieve League's cliffs reach almost three times higher.Slieve League Cliffs (or Sliabh Liag in Gaelic), situated on the south west coast of County Donegal, are said to be the one of the highest and finest marine cliffs in Europe. To fully enjoy the spectacle of Sliabh League it is best to leave your car at the car park and walk the few miles to the cliffs so as not to miss the exciting scenery of the area.

There are terrific views of the Atlantic Ocean, the Sligo Mountains and Donegal Bay as you walk towards the terrifyingly high top of Sliabh League, where the cliff face of Bunglas rises over 600m above the raging ocean. Experienced walkers only should venture beyond the viewing point onto One Man's Pass which loops around onto the Pilgrim's Path.