
Lough Arrow Special Area of Conservation is a pristine freshwater lake and surrounding habitat in County Sligo and County Roscommon, celebrated for its rich biodiversity, rare species, and scenic natural beauty.
Lough Arrow Special Area of Conservation (SAC) encompasses Lough Arrow, one of Ireland's largest natural lakes, situated in the west midlands of Ireland across the counties of Sligo and Roscommon. The lake covers approximately 12.47 square kilometers and is sheltered by rolling drumlin hills and peatlands, offering a tranquil and picturesque landscape. Ecologically, Lough Arrow is notable for its clear oligotrophic waters, supporting diverse aquatic vegetation and a variety of freshwater fish species, including trout and the critically important rare white-clawed crayfish (Austropotamobius pallipes). The surrounding habitats comprise wet grasslands, woodland patches, and heath, which contribute to the area's ecological importance. The SAC designation reflects the area's role in conserving habitat types and species listed in the EU Habitats Directive. Historically, the lake and its environs have been a focus for local communities for fishing and leisure activities. Outdoor enthusiasts are drawn to Lough Arrow for angling, birdwatching, and gentle hiking along its shores. Bird species frequently observed include great crested grebes, mute swans, and a variety of waterfowl, making it a favored destination for nature observation. There are several small villages nearby where visitors can access the area and experience traditional Irish rural culture. The site provides a serene refuge for wildlife and an ideal spot for low-impact nature exploration, promoting conservation awareness and outdoor recreation in harmony with the environment.
Crystal-clear waters of Lough Arrow supporting rare freshwater ecosystems
Habitat for the endangered white-clawed crayfish
Scenic views across drumlin landscapes and peatlands
Quiet shoreline spots ideal for birdwatching and fishing
A large oligotrophic lake with exceptionally clear water, creating a rare freshwater habitat.
One of the few remaining Irish habitats supporting this endangered crayfish species.
Rolling hills formed during the last Ice Age, providing scenic overlooks and diverse ecosystems.