- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 49°58'9"N 6°17'23"W
- Eastings/Northings: 92500, 16500
- OS Grid: SV925165
- Mapcode Local: GBR BXVR.PS1
- Mapcode Global: VGYBY.X1PD
Location and coordinates are for the approximate centre of St Martin's Bay within this administrative area.
Geographic features and populated places may cross administrative borders.