The remains of the Castle can be visited
CastleDownpatrick
Quoile Castle

Quoile Castle is a castle situated 1.5 miles (2.4 km) from Downpatrick, County Down, Northern Ireland, just off the main road from Downpatrick to Strangford, on the east bank of the River Quoile.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: Aubrey Dale · Wikimedia Commons · CC BY-SA 2.0
This description is an excerpt from the linked Wikipedia article and was written by its authors. Like the original it is licensed under CC BY-SA 4.0 and may be reused under the same terms.
Location: 54.3495, -5.6999