- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 53°23'34"N 4°16'11"W
- Eastings/Northings: 249170, 390859
- OS Grid: SH491908
- Mapcode Local: GBR HMTQ.YRG
- Mapcode Global: WH422.DZ17
Location and coordinates are for the approximate centre of Porth Helygen within this administrative area.
Geographic features and populated places may cross administrative borders.