- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 55°47'18"N 4°52'7"W
- Eastings/Northings: 220235, 658758
- OS Grid: NS202587
- Mapcode Local: GBR 30.8B8G
- Mapcode Global: WH2N1.5RVR
Location and coordinates are for the approximate centre of Castle Bay within this administrative area.
Geographic features and populated places may cross administrative borders.