Harlech Castle

Harlech Castle occupies one of the most dramatic castle sites in Britain. Perched on a crag 60 metres above the coastal plain, with the mountains of Eryri rising behind it and Cardigan Bay spread before it, the castle commands views that stretch to the Llŷn Peninsula, Bardsey Island, and on clear days the mountains of Ireland. Built by Edward I between 1282 and 1289, it is simultaneously one of his most functional military designs and his most visually spectacular.

The castle's famous concentric design — a wall within a wall, with the inner ward raised higher than the outer — gave defenders multiple lines of resistance and allowed the outer walls to be covered from the inner towers. The approach from the town side was protected by a long flight of steps cut into the rock. From the seaward side, a covered stairway — the Way from the Sea — descended to the water's edge, allowing the castle to be supplied even under siege.

Key Facts

Men of Harlech

During the Wars of the Roses, Harlech was held for seven years (1461–1468) by Lancastrian forces — the longest siege in British history. This remarkable resistance is believed to have inspired the song "Men of Harlech," which became one of Wales' most iconic anthems. The castle changed hands multiple times during the Welsh uprising of Owain Glyndŵr in the early fifteenth century, serving briefly as his capital and the seat of the last native Welsh parliament.

The View

No visit to Harlech is complete without taking time on the castle walls to appreciate the view. To the west, Cardigan Bay opens out towards the Llŷn Peninsula and Bardsey Island. To the north and east, the entire southern wall of Eryri is visible — a panorama that includes Cadair Idris, the Rhinogydd, and on clear days the distant outline of Yr Wyddfa. The castle's position captures both the mountains and the sea in a single vista.