King John's Castle
About
King John's Castle is the anchor of medieval Limerick, an 800-year Norman fortress on the banks of the Shannon on King's Island. Built in the early thirteenth century on the orders of King John, its curtain walls, drum towers and gatehouse still dominate the riverside, and inside is one of the strongest interactive exhibitions of any Irish castle, telling the story of the siege history and the medieval city with archaeology, film and hands-on displays. The castle has been operated by Discover Limerick DAC since 2022. Allow a good couple of hours, and climb the towers for the view across the river to the Treaty Stone and along the quays.
Photos
Highlights
- ✓An early-13th-century Norman castle on King's Island
- ✓A strong interactive exhibition on the siege history and medieval city
- ✓Curtain walls, drum towers and a riverside setting
- ✓Views across the Shannon to the Treaty Stone and the quays
Tips
- →Operated by Discover Limerick DAC since 2022, not Shannon Heritage; ignore stale third-party listings.
- →Summer hours run roughly 09:30 to 18:00; check the website before travelling.
- →Pair it with St Mary's Cathedral and the Treaty Stone, all within a few minutes' walk.
Best Season
More Heritage Activities
St Mary's Cathedral
Founded in 1168, the Church of Ireland cathedral is the oldest building in Limerick in continuous daily use.
The Treaty Stone
The city's emblem on Clancy Strand: the limestone block linked to the 1691 Treaty of Limerick, opposite the castle. Free.