
Clew Bay Complex SAC is a diverse coastal and marine protected area renowned for its array of islands, rich habitats, and vibrant marine life, offering exceptional opportunities for wildlife observation, boating, and coastal exploration.
The Clew Bay Complex Special Area of Conservation (SAC) encompasses the inland sea of Clew Bay and its surrounding islands, located off the west coast of County Mayo, Ireland. This SAC covers a mosaic of habitats including intertidal mudflats, sandy beaches, salt marshes, limestone pavements, and submerged reefs that support diverse marine and coastal flora and fauna. The area is particularly notable for its rich marine biodiversity, including populations of otters, seabirds, harbour seals, and a variety of fish species. The bay is dotted with approximately 365 islands, offering secluded spots and unique ecological niches. Historically, Clew Bay has been shaped by centuries of human activity, from ancient settlements to fishing and farming traditions that continue in balance with nature today. Recreational visitors can explore the bay by kayak, boat, or on foot along coastal trails, enjoying birdwatching, photography, and the serene island landscapes. Notable landmarks include Clare Island, a hub of cultural history and wildlife, and Achillbeg Island, known for its rugged beauty. The SAC appeals to those seeking wild coastal experiences, marine ecology, and rich cultural heritage in an unspoiled Atlantic environment.
Clare Island: historic island with castle ruins and diverse wildlife
Intertidal mudflats rich in marine biodiversity and vital bird feeding grounds
Harbour seal populations that haul out on secluded rocky shores
Kayaking routes weaving through numerous small islands and quiet bays
An island featuring castle ruins, historical sites, and extensive habitats for seabirds and seals.
Vital feeding habitats for migratory and resident shorebirds, forming a key ecological component of the bay.
Regularly observed along quiet shorelines, these marine mammals add to the bay’s rich wildlife.