- Category: Water Feature
- Type: Island
- Latitude/Longitude: 52°8'8"N 4°31'21"W
- Eastings/Northings: 227459, 251590
- OS Grid: SN274515
- Mapcode Local: GBR D5.7NVG
- Mapcode Global: VH2MK.KLH6
Location and coordinates are for the approximate centre of Carreg y Ddafad within this administrative area.
Geographic features and populated places may cross administrative borders.