- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 53°17'35"N 4°40'46"W
- Eastings/Northings: 221498, 380716
- OS Grid: SH214807
- Mapcode Local: GBR GMTZ.WR0
- Mapcode Global: WH31B.2HV4
Location and coordinates are for the approximate centre of Porth y Gwyddel within this administrative area.
Geographic features and populated places may cross administrative borders.