- Category: Water Feature
- Type: Island
- Latitude/Longitude: 55°38'24"N 1°36'40"W
- Eastings/Northings: 424564, 638572
- OS Grid: NU245385
- Mapcode Local: GBR K357.Y0
- Mapcode Global: WHC0G.6HYL
Location and coordinates are for the approximate centre of Blue Caps within this administrative area.
Geographic features and populated places may cross administrative borders.