- Category: Water Feature
- Type: Island
- Latitude/Longitude: 56°16'18"N 6°20'38"W
- Eastings/Northings: 131160, 717301
- OS Grid: NM311173
- Mapcode Local: GBR BDQ4.GVK
- Mapcode Global: WGYDG.JM6B
Location and coordinates are for the approximate centre of Eilean na Seamair within this administrative area.
Geographic features and populated places may cross administrative borders.