- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 51°53'12"N 5°18'23"W
- Eastings/Northings: 172553, 226090
- OS Grid: SM725260
- Mapcode Local: GBR C4.R6DQ
- Mapcode Global: VH0TC.ZT0Y
Location and coordinates are for the approximate centre of Porthselau within this administrative area.
Geographic features and populated places may cross administrative borders.