Slieve League is a stunning mountain range located in County Donegal, Ireland. It is renowned for its dramatic sea cliffs, which rise over 600 meters (1,969 feet) above the Atlantic Ocean, making them some of the highest in Europe. The area is popular for hiking, offering breathtaking views of the surrounding landscape and coastline. The cliffs are part of the Slieve League Cliffs Nature Reserve, which is home to diverse wildlife and unique plant species. Visitors can explore various trails, including the famous One Man's Pass, which provides an exhilarating experience for outdoor enthusiasts. The site is also rich in cultural history, with ancient ruins and artifacts nearby.