- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 54°41'31"N 4°26'52"W
- Eastings/Northings: 242316, 535751
- OS Grid: NX423357
- Mapcode Local: GBR HJD9.M7S
- Mapcode Global: WH3VS.NB2D
Location and coordinates are for the approximate centre of Port Castle Bay within this administrative area.
Geographic features and populated places may cross administrative borders.