Trim Castle

About

Trim Castle, Ireland's largest Norman castle ruin, sits in the town of Trim, County Meath, overlooking the River Boyne. Built over a 30‑year period starting in 1172, the imposing keep, great hall, and curtain walls offer a vivid window into 12th‑century military architecture and the medieval life of the English king’s Irish dominion. Today the castle is a National Monument managed by the Office of Public Works and welcomes visitors for self‑guided tours through its surviving walled enceinte – a guided tour of the keep remains available on a limited basis. The visitor experience blends history, archaeology and the scenic banks of the Boyne: the great gate, the 47‑metre high keep, the great hall’s early 14th‑century staircase and the extensive medieval moat are among the highlights. In winter the complex is open only on weekends and bank holidays, while in the warmer months the guided tours of the keep continue daily with a modest entry fee.