- Category: Water Feature
- Type: Island
- Latitude/Longitude: 56°11'20"N 3°21'29"W
- Eastings/Northings: 315801, 700426
- OS Grid: NO158004
- Mapcode Local: GBR 22.G1GK
- Mapcode Global: WH6RC.DP1T
Location and coordinates are for the approximate centre of St Serf's Island within this administrative area.
Geographic features and populated places may cross administrative borders.