- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°45'39"N 7°1'47"W
- Eastings/Northings: 100962, 885712
- OS Grid: NG009857
- Mapcode Local: GBR 9816.LSL
- Mapcode Global: WGW2P.Z6K5
Location and coordinates are for the approximate centre of Sùnam within this administrative area.
Geographic features and populated places may cross administrative borders.