- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 53°19'13"N 4°39'49"W
- Eastings/Northings: 222673, 383702
- OS Grid: SH226837
- Mapcode Local: GBR GMVX.QH5
- Mapcode Global: WH314.BSDT
Location and coordinates are for the approximate centre of Porth Namarch within this administrative area.
Geographic features and populated places may cross administrative borders.