- Category: Water Feature
- Type: Island
- Latitude/Longitude: 50°13'47"N 4°49'41"W
- Eastings/Northings: 198377, 40498
- OS Grid: SW983404
- Mapcode Local: GBR ZW.6M1B
- Mapcode Global: FRA 08SF.0ST
Location and coordinates are for the approximate centre of Attimidday Rock within this administrative area.
Geographic features and populated places may cross administrative borders.