- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 52°54'22"N 4°38'30"W
- Eastings/Northings: 222429, 337587
- OS Grid: SH224375
- Mapcode Local: GBR 51.NT0Z
- Mapcode Global: WH338.N6SS
Location and coordinates are for the approximate centre of Porth Ysglaig within this administrative area.
Geographic features and populated places may cross administrative borders.