- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 51°57'0"N 5°11'18"W
- Eastings/Northings: 180988, 232754
- OS Grid: SM809327
- Mapcode Local: GBR C8.MCQM
- Mapcode Global: VH1QQ.07YW
Location and coordinates are for the approximate centre of Porth Ffynnon within this administrative area.
Geographic features and populated places may cross administrative borders.