- Category: Water Feature
- Type: Island
- Latitude/Longitude: 50°6'10"N 5°6'49"W
- Eastings/Northings: 177442, 27190
- OS Grid: SW774271
- Mapcode Local: GBR ZB.8PWQ
- Mapcode Global: FRA 085R.3M4
Location and coordinates are for the approximate centre of Grebe Rock within this administrative area.
Geographic features and populated places may cross administrative borders.