- Category: Water Feature
- Type: Island
- Latitude/Longitude: 52°10'1"N 4°28'5"W
- Eastings/Northings: 231302, 254948
- OS Grid: SN313549
- Mapcode Local: GBR D7.5QC6
- Mapcode Global: VH3JV.HSRN
Location and coordinates are for the approximate centre of Carreg Ifan within this administrative area.
Geographic features and populated places may cross administrative borders.