
Carlingford Lough European Marine Site is a protected coastal and marine area straddling Northern Ireland and the Republic of Ireland, renowned for its rich biodiversity, scenic coastline, and recreational opportunities including wildlife watching and boating.
Carlingford Lough European Marine Site encompasses the tidal waters, intertidal zones, and adjacent habitats of Carlingford Lough, a glacial sea inlet located on the border between County Louth in the Republic of Ireland and County Down in Northern Ireland. The site covers an extensive area of marine and coastal environments, including mudflats, salt marshes, rocky shores, and subtidal habitats. These diverse habitats support internationally important populations of wintering waterbirds, migratory fish species such as salmon and sea trout, and protected marine mammals including dolphins and seals. The Lough’s sheltered waters are popular for boating, kayaking, and recreational fishing, while its picturesque setting attracts walkers exploring nearby coastal trails and birdwatchers keen to observe species like brent geese and oystercatchers. Historically, the Lough has been a key maritime gateway with remnants of old fishing villages, piers, and maritime infrastructure dotting its shores. Landmarks such as the medieval Carlingford town with its castle and quaint streets provide cultural interest alongside natural attractions. Conservation efforts focus on maintaining the health of this important estuarine ecosystem under EU Natura 2000 designations, balancing environmental protection with sustainable local development. Visitors appreciate the combination of tranquil waters, wildlife-rich landscapes, and outdoor leisure opportunities that make Carlingford Lough a unique marine protected area on the island of Ireland.
The scenic coastal town of Carlingford with its medieval castle and harbor
Internationally important bird habitats supporting wintering waterfowl
Diverse marine habitats sheltering dolphins and seals
Popular kayaking and small boat sailing opportunities in calm lough waters
A 13th-century Norman castle offering scenic views over the lough and a glimpse into the region's maritime history.
Critical habitats for wintering geese, waders, and other waterbirds protected under the European Natura 2000 network.
The sheltered waters are frequented by bottlenose dolphins and grey seals, often spotted during boating or shoreline walks.