- Category: Water Feature
- Type: Island
- Latitude/Longitude: 50°13'3"N 5°29'12"W
- Eastings/Northings: 151364, 41104
- OS Grid: SW513411
- Mapcode Local: GBR DXT3.KKY
- Mapcode Global: VH12D.VS7K
Location and coordinates are for the approximate centre of Crowner Rocks within this administrative area.
Geographic features and populated places may cross administrative borders.