- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°42'11"N 7°2'2"W
- Eastings/Northings: 100242, 879305
- OS Grid: NG002793
- Mapcode Local: GBR 980C.JXJ
- Mapcode Global: WGW2W.XNM0
Location and coordinates are for the approximate centre of Grodhaigh within this administrative area.
Geographic features and populated places may cross administrative borders.