- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 52°50'38"N 4°43'29"W
- Eastings/Northings: 216588, 330858
- OS Grid: SH165308
- Mapcode Local: GBR GPQ5.LJ3
- Mapcode Global: WH33F.DS95
Location and coordinates are for the approximate centre of Porth Llong within this administrative area.
Geographic features and populated places may cross administrative borders.