- Category: Water Feature
- Type: Island
- Latitude/Longitude: 52°6'56"N 4°44'0"W
- Eastings/Northings: 212933, 249896
- OS Grid: SN129498
- Mapcode Local: GBR CW.8Y87
- Mapcode Global: VH2MM.W2XY
Location and coordinates are for the approximate centre of Craig yr Odyn within this administrative area.
Geographic features and populated places may cross administrative borders.