- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 53°24'23"N 4°32'11"W
- Eastings/Northings: 231492, 392948
- OS Grid: SH314929
- Mapcode Local: GBR HM5P.NSX
- Mapcode Global: WH41Y.9M1Y
Location and coordinates are for the approximate centre of Porth Tywodog within this administrative area.
Geographic features and populated places may cross administrative borders.