
A spectacular protected area in County Donegal featuring some of Ireland's highest sea cliffs and rugged mountain landscapes, offering exceptional hiking, wildlife viewing, and cultural heritage experiences.
The Slieve League and Bluestack Mountains Special Area of Conservation (SAC) encompasses a diverse and ecologically significant region in County Donegal, Ireland. It includes the iconic Slieve League cliffs, which are among the highest sea cliffs in Europe, rising dramatically to nearly 600 meters above the Atlantic Ocean. The adjacent Bluestack Mountains, also known as the Croaghgorms, provide a rugged, mountainous backdrop rich in heathland, blanket bogs, and native woodland habitats. These combined landscapes support a wide range of flora and fauna, including rare and protected species such as the pearl-bordered fritillary butterfly and otters. The area's geology is notable for its ancient Precambrian rocks and glacially sculpted valleys.
Historically, these lands have been shaped by centuries of human activity, including traditional sheep grazing and established patterns of rural settlement, which contribute to the scenic mosaic of peatlands, grasslands, and forests. Outdoor enthusiasts are drawn to Slieve League for its breathtaking cliff walks, such as the popular trail from Teelin village, offering panoramic ocean views and challenging terrain. The Bluestack Mountains provide an excellent venue for hillwalking, mountain biking, and birdwatching amid heather-covered summits and upland lakes.
Visitors are also attracted by the region's cultural heritage, including nearby villages, ancient stone structures, and Gaelic traditions. The SAC designation helps protect these habitats, landscapes, and species, balancing conservation with recreation. The area's wild, unspoiled nature and relatively low visitor numbers compared with more famous Irish sites ensure a tranquil yet dramatic experience for nature lovers and adventurers alike.
Slieve League Cliffs – Among the highest sea cliffs in Europe, with stunning Atlantic views
Bluestack Mountains – Remote upland heath and bog habitats ideal for hillwalking
Pearl-bordered fritillary butterfly habitat – A rare species supported by protected woodlands
Teelin village and coastal trails – Cultural heritage site with access to the cliffs
Rising nearly 600 meters above the sea, these dramatic cliffs offer unparalleled coastal views and hiking experiences.
A rugged mountain range characterized by heath, blanket bog, and upland lakes, supporting diverse wildlife.
Extensive blanket bog ecosystems that are vital for carbon storage and provide habitat for specialized species.