- Category: Water Feature
- Type: Island
- Latitude/Longitude: 49°55'42"N 6°21'15"W
- Eastings/Northings: 87611, 12239
- OS Grid: SV876122
- Mapcode Local: GBR BXPW.461
- Mapcode Global: VGYC3.T214
Location and coordinates are for the approximate centre of Tarbarrel Rock within this administrative area.
Geographic features and populated places may cross administrative borders.