- Category: Water Feature
- Type: Island
- Latitude/Longitude: 50°48'29"N 1°4'12"W
- Eastings/Northings: 465607, 101357
- OS Grid: SU656013
- Mapcode Local: GBR VVB.SV
- Mapcode Global: FRA 86NY.LWB
Location and coordinates are for the approximate centre of Portsea Island within this administrative area.
Geographic features and populated places may cross administrative borders.