Cahir Castle stands as one of Ireland's largest and best-preserved castles on a rocky island in the River Suir, County Tipperary, built in the 13th century as the stronghold of the powerful Butler family. The fortress's formidable defensive design remained seemingly impregnable until 1599, when the Earl of Essex breached it using heavy artillery for the first time. Visitors can explore the keep, curtain walls, and outer courtyard with audiovisual presentations providing historical context. The castle has appeared in films like Excalibur and The Tudors, with year-round opening and accessible facilities.
