- Category: Water Feature
- Type: Island
- Latitude/Longitude: 60°25'19"N 0°44'21"W
- Eastings/Northings: 469520, 1171570
- OS Grid: HU695715
- Mapcode Local: GBR S1J6.1SL
- Mapcode Global: XHF8Y.T99P
Location and coordinates are for the approximate centre of Grunay within this administrative area.
Geographic features and populated places may cross administrative borders.