- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 53°14'49"N 4°36'45"W
- Eastings/Northings: 225781, 375428
- OS Grid: SH257754
- Mapcode Local: GBR GNZ3.PX9
- Mapcode Global: WH42P.3MSZ
Location and coordinates are for the approximate centre of Porth Gwalch within this administrative area.
Geographic features and populated places may cross administrative borders.