- Category: Water Feature
- Type: Island
- Latitude/Longitude: 53°7'57"N 4°24'51"W
- Eastings/Northings: 238573, 362218
- OS Grid: SH385622
- Mapcode Local: GBR 5B.6N4V
- Mapcode Global: WH43C.5J5B
Location and coordinates are for the approximate centre of Ynys-y-cranc within this administrative area.
Geographic features and populated places may cross administrative borders.