- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 51°52'52"N 5°18'51"W
- Eastings/Northings: 171994, 225499
- OS Grid: SM719254
- Mapcode Local: GBR C3.RQHS
- Mapcode Global: VH0TC.TZX5
Location and coordinates are for the approximate centre of Porth Cadnaw within this administrative area.
Geographic features and populated places may cross administrative borders.