- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 52°53'57"N 4°39'16"W
- Eastings/Northings: 221537, 336847
- OS Grid: SH215368
- Mapcode Local: GBR 50.P9S3
- Mapcode Global: WH338.GDP3
Location and coordinates are for the approximate centre of Porth Gwylan within this administrative area.
Geographic features and populated places may cross administrative borders.