- Category: Water Feature
- Type: Island
- Latitude/Longitude: 60°12'31"N 1°30'28"W
- Eastings/Northings: 427380, 1147250
- OS Grid: HU273472
- Mapcode Local: GBR Q1MR.HTZ
- Mapcode Global: XHD2V.RNKQ
Location and coordinates are for the approximate centre of Holm of Sefster within this administrative area.
Geographic features and populated places may cross administrative borders.