- Category: Water Feature
- Type: Island
- Latitude/Longitude: 52°6'44"N 4°43'13"W
- Eastings/Northings: 213813, 249501
- OS Grid: SN138495
- Mapcode Local: GBR CX.91RD
- Mapcode Global: VH2MN.459G
Location and coordinates are for the approximate centre of Careg Lydan within this administrative area.
Geographic features and populated places may cross administrative borders.