
Lough Carra Special Area of Conservation is a pristine freshwater lake renowned for its clear waters and rich biodiversity, offering anglers, birdwatchers, and nature enthusiasts a unique outdoor experience in western Ireland.
Lough Carra is a spring-fed lake situated in County Mayo, Ireland, approximately 10 kilometers south of Castlebar. This Special Area of Conservation (SAC) protects one of Ireland's clearest and most ecologically valuable lakes, characterized by its limestone geology, which gives the water remarkable clarity and supports diverse habitats. The lake covers roughly 4,500 acres and stretches approximately 6 miles in length. Its crystal-clear waters provide important habitat for several threatened aquatic species including the critically endangered freshwater pearl mussel (Margaritifera margaritifera), along with rare species of white-clawed crayfish and Atlantic salmon.
The surrounding landscape features a mosaic of calcareous grasslands, reed beds, and wet woodlands, supporting a wide range of bird species such as herons, kingfishers, and migrating waterfowl. Historically, the area around Lough Carra has yielded significant archaeological finds, including medieval crannogs—ancient artificial islands used for habitation.
Outdoor recreation in Lough Carra SAC centers on angling, as the lake is renowned for wild brown trout fishing, attracting anglers from across Ireland and beyond. Birdwatching and nature photography are popular due to the abundance of wildlife and tranquil scenery. Though there are limited developed hiking trails, exploring the lake by boat offers unique access to remote shorelines and natural features. The nearby towns of Castlebar and Partry serve as gateways for visitors. Lough Carra's combination of ecological significance and recreational appeal make it a valued natural asset requiring continued conservation efforts.
Crystal-clear limestone waters with exceptional visibility
Habitat for critically endangered freshwater pearl mussel
Historic medieval crannogs visible in the lake
Renowned wild brown trout fishing opportunities
Supports one of the last viable populations of this critically endangered species, dependent on high water quality.
Ancient man-made islands used historically for settlement and defense, scattered throughout the lake.
The lake's limestone base results in exceptional water clarity and supports unique aquatic ecosystems.