- Category: Water Feature
- Type: Island
- Latitude/Longitude: 50°38'9"N 1°26'4"W
- Eastings/Northings: 440080, 81973
- OS Grid: SZ400819
- Mapcode Local: GBR 79S.43G
- Mapcode Global: FRA 77WD.8WS
Location and coordinates are for the approximate centre of Hardman Rock within this administrative area.
Geographic features and populated places may cross administrative borders.