At a glance
Anglesey's most elegant town — Georgian seafront, Beaumaris Castle (UNESCO, most perfect concentric castle in Britain, begun 1295), and a remarkably intact Victorian gaol. 9 miles from Bangor on the Menai Strait. LL58 8BS.
About Beaumaris
Beaumaris is a Georgian market town on the south-east coast of Anglesey, occupying a flat shoreline on the Menai Strait with clear views across to the mountains of Eryri. Its medieval street plan — the town was laid out as a planned borough when Edward I built the castle in 1295 — and its Georgian architecture give it a distinct character among Anglesey's settlements: more formal and elegant than the island's farming villages, but intimate compared to the larger coastal resorts of the North Wales mainland.
Beaumaris Castle, begun in 1295, is the last and technically most accomplished of the four UNESCO Iron Ring castles (Conwy, Caernarfon, Harlech, and Beaumaris). The concentric design — a perfectly symmetrical inner ward of massive walls surrounded by a lower outer ward and a water-filled moat — represents the pinnacle of late-medieval castle design. The castle was never fully completed (Edward's funds ran out) and was never seriously besieged, leaving it an unusually pure architectural statement. Cadw manages the site and runs guided tours.
A 5-minute walk from the castle is Beaumaris Gaol — a Victorian prison of 1829 in remarkable condition, with original cell blocks, a condemned cell, treadwheel, and execution chamber still visible. Penmon Point — with its lighthouse, grey seals, and medieval priory — is 4 miles east along the coast. Oriel Ynys Môn (free museum and Tunnicliffe art gallery) is 7 miles west at Llangefni. Together these make Beaumaris one of the best half-day to full-day destinations on the island.
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Frequently asked questions
Beaumaris is the most elegant town on <span lang="cy">Anglesey</span> — a Georgian market town with a medieval street plan, a seafront on the Menai Strait with views to the Snowdonian peaks, and Beaumaris Castle: the last and most technically accomplished of the four castles built by Edward I in his Iron Ring of conquest (the others being Conwy, Caernarfon, and Harlech). The castle is a UNESCO World Heritage Site and is considered the finest example of a concentric (castle-within-a-castle) design in Britain. Together with Beaumaris Gaol and the surrounding coastline, the town offers a genuinely full day.
Beaumaris Castle was begun in 1295 by Edward I, the last of the four UNESCO Iron Ring castles (Conwy, Caernarfon, Harlech, and Beaumaris). Despite being the last-built, it is considered the most technically perfect — a concentric design of inner and outer rings of defensive walls, a water-filled moat, and a dock that allowed supply ships to enter directly. The castle was never fully completed and never seriously tested in battle, which makes it a uniquely intact representation of late-13th-century military architecture. Entry is managed by Cadw.
Beaumaris Gaol is a remarkably intact Victorian prison built in 1829, one of the best-preserved examples of its period in Wales. The gaol operated until 1878 and its interior — cell blocks, the condemned cell, the treadwheel (a large human-powered wheel used for hard labour), and the execution room — has been carefully preserved. Two prisoners were publicly hanged outside the gaol in the 19th century. The gaol is managed by the Isle of Anglesey County Council and provides a compelling and sometimes unsettling insight into Victorian prison conditions.
Beaumaris is an excellent base for the south and east of <span lang="cy">Anglesey</span>. Within 10 miles you have Penmon Point (seals, lighthouse, priory), Bryn Celli Ddu (Neolithic passage tomb), Newborough Beach (3-mile sand beach with Llanddwyn Island), and the Menai Strait bridges. The town has a good range of accommodation and restaurants. The Menai Bridge and Bangor are 9 miles west, giving easy access to Caernarfon Castle (17 miles) and Snowdonia beyond. Beaumaris is one of the few places in North Wales where a visitor without a car could base themselves and reach several attractions by bus.
Beaumaris is a year-round destination. Summer (June–August) is busiest — castle queues can build on fine weekends. Spring and early autumn offer good weather with fewer crowds, and accommodation prices are typically lower. The town's Georgian architecture, cafés, and waterfront are enjoyable in any season. The castle and gaol are both seasonal attractions — check Cadw and Anglesey County Council websites for current opening days and hours before visiting.