- Category: Water Feature
- Type: Island
- Latitude/Longitude: 59°5'13"N 6°9'34"W
- Eastings/Northings: 161821, 1029660
- OS Grid: HW618296
- Mapcode Local: GBR C45Q.9FF
- Mapcode Global: WGYZY.CV4P
Location and coordinates are for the approximate centre of Gralisgeir within this administrative area.
Geographic features and populated places may cross administrative borders.