- Category: Water Feature
- Type: Island
- Latitude/Longitude: 53°25'9"N 4°28'25"W
- Eastings/Northings: 235708, 394250
- OS Grid: SH357942
- Mapcode Local: GBR HMBN.MHS
- Mapcode Global: WH41Z.79XY
Location and coordinates are for the approximate centre of Ynys yr Wyn within this administrative area.
Geographic features and populated places may cross administrative borders.