- Category: Water Feature
- Type: Island
- Latitude/Longitude: 51°9'46"N 4°39'7"W
- Eastings/Northings: 214653, 143744
- OS Grid: SS146437
- Mapcode Local: GBR GTWM.3S0
- Mapcode Global: VH2SB.91XF
Location and coordinates are for the approximate centre of Rat Island within this administrative area.
Geographic features and populated places may cross administrative borders.