Middle Mouse
Middle Mouse, known in Welsh as Ynys Badrig, is a small uninhabited island lying off the northernmost tip of Anglesey in North Wales, United Kingdom. It holds a distinction of considerable geographic significance: it is the northernmost point of Wales, sitting in the Irish Sea roughly a kilometre offshore from the headland of Mynydd y Garn near the village of Cemaes. The island is part of the county of Anglesey and falls within the postcode district associated with that remote northwestern corner of the island. Despite its modest size — little more than a rocky outcrop rising to a modest height above the sea — Middle Mouse carries a weight of history, myth, and ecological importance that belies its diminutive appearance. It is a Site of Special Scientific Interest and falls within the wider Isle of Anglesey Area of Outstanding Natural Beauty, making it part of one of the most celebrated coastal landscapes in Wales.
The name "Middle Mouse" belongs to a curious trio of islets off the Anglesey coast, the others being East Mouse (Ynys Amlwch) near Amlwch and West Mouse (Maen y Bugail) further along to the northwest. The Welsh name for this island, Ynys Badrig, translates roughly as "Patrick's Island," a reference to the Christian missionary Saint Patrick, who is said to have been shipwrecked on or near this rocky outcrop in the fifth century before making his way ashore on Anglesey. According to tradition, Patrick gave thanks for his survival by founding a church on the nearby mainland, which became the Church of Saint Patrick at Llanbadrig — the only church in Wales dedicated to Saint Patrick, and one of the oldest Christian sites in the country. This legend gives Ynys Badrig a remarkable spiritual and historical resonance for a place most visitors will never set foot upon.
Physically, Middle Mouse is a rugged, wave-battered rock formation, largely composed of ancient Precambrian and Ordovician geology that characterises much of northern Anglesey. It rises steeply from the sea with no harbour or landing place of any comfort, its surfaces scoured by wind, salt spray, and the relentless action of tidal currents. The island is home to various seabirds, including nesting colonies of guillemots and other cliff-nesting species, whose calls carry across the water even on quieter days. The surrounding sea is notoriously turbulent in poor conditions, as strong tidal races sweep around the northern headlands of Anglesey, and the waters here have claimed several vessels over the centuries. On a calm summer's day, the island appears as a grey-green silhouette against the blue of the Irish Sea, with the mountains of Snowdonia visible to the southeast and the Wicklow Hills of Ireland discernible on the clearest days to the west.
The surrounding coastal area of northern Anglesey is strikingly beautiful and relatively unspoiled. The nearby village of Cemaes is a small, picturesque harbour settlement and is often described as the most northerly village in Wales. Its harbour, beach, and bay provide excellent views toward the general direction of Middle Mouse, and the coastal path — part of the Isle of Anglesey Coastal Path — runs along the clifftops and offers some of the best vantage points for viewing the island from land. The Church of Llanbadrig, standing close to the cliffs a short distance east of Cemaes, is a compelling companion visit, retaining medieval fabric and an interior remodelled with striking Islamic-influenced tilework funded by Lord Stanley of Alderley in the nineteenth century.
Visiting Middle Mouse in person requires a boat and is not a standard tourist excursion — there are no regular trips to the island and its shores are difficult and potentially hazardous to access. Most visitors experience it from the coastal path or from the beach and headland near Cemaes, where the island can be seen clearly across the water. Sea kayakers sometimes paddle out to view it more closely, though care must be taken given the tidal conditions. The best time to appreciate the area is between late spring and early autumn, when the coastal path is at its most walkable, seabirds are active, and the sea is at its most benign. The Isle of Anglesey Coastal Path passes through Cemaes and makes for outstanding walking, with the stretch around this northern tip of the island among its most dramatic sections.
Ynys Badrig carries the additional distinction of being associated with one of the oldest ecclesiastical sites in Britain and is deeply woven into the hagiography of Saint Patrick, making it of interest not only to naturalists and walkers but also to those interested in early Celtic Christianity. The pairing of this remote, wind-scoured rock with the ancient stone church at Llanbadrig — still an active place of worship — creates an atmosphere of quiet historical depth that distinguishes this corner of Anglesey from more visited parts of Wales. Few places in Britain pack so much legend, landscape, and ecological interest into so modest a geographic footprint.