- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 54°50'5"N 5°6'33"W
- Eastings/Northings: 200407, 553327
- OS Grid: NX004533
- Mapcode Local: GBR FHRX.Y3C
- Mapcode Global: WH1RF.HQ5V
Location and coordinates are for the approximate centre of Castle Bay within this administrative area.
Geographic features and populated places may cross administrative borders.