Clew Bay Marine Protected Area Adventures

Clew Bay Marine Protected Area (MPA) is located off the west coast of County Mayo, Ireland, encompassing much of Clew Bay's sheltered waters and numerous offshore islands. The bay is renowned for its stunning geography, which includes approximately 365 small islands famously described as ‘clew’, meaning a ball of yarn. This mosaic of rocky islets, sandbanks, and submerged habitats creates a biodiversity hotspot important for marine species such as seals, otters, and numerous seabirds. The area also protects important habitats such as eelgrass beds, which support juvenile fish and act as carbon sinks. Established to safeguard the ecological integrity of the bay’s marine environment, the MPA plays a critical role in conserving marine flora and fauna, as well as supporting traditional fisheries. Visitors are drawn to Clew Bay for kayaking and sailing among the islands, seal-watching tours, and exploring rich coastal environments via hiking trails along the shorelines and nearby slate hills. Key landmarks include Clare Island, with its historic lighthouse and castle ruins, and Inishturk, noted for its dramatic cliffs and marine wildlife. The bay’s calm waters and island-scattered layout make it highly attractive for water-based recreation, while the rugged coastline offers scenic trails and birdwatching opportunities. Clew Bay MPA balances conservation with sustainable community use, protecting vital habitats while enabling locals and tourists alike to experience the natural beauty and cultural heritage of the Mayo coastline.