- Category: Water Feature
- Type: Island
- Latitude/Longitude: 53°25'21"N 4°24'17"W
- Eastings/Northings: 240291, 394466
- OS Grid: SH402944
- Mapcode Local: GBR HMHN.H00
- Mapcode Global: WH420.97NF
Location and coordinates are for the approximate centre of Traeth y Gwartheg within this administrative area.
Geographic features and populated places may cross administrative borders.