- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 53°21'28"N 4°14'11"W
- Eastings/Northings: 251249, 386896
- OS Grid: SH512868
- Mapcode Local: GBR HMXT.N2Q
- Mapcode Global: WH428.WVQK
Location and coordinates are for the approximate centre of Porth Helaeth within this administrative area.
Geographic features and populated places may cross administrative borders.