- Category: Water Feature
- Type: Island
- Latitude/Longitude: 51°29'28"N 0°53'43"W
- Eastings/Northings: 476789, 177499
- OS Grid: SU767774
- Mapcode Local: GBR C5C.GFJ
- Mapcode Global: VHDWN.FSJ6
Location and coordinates are for the approximate centre of Hallsmead Ait within this administrative area.
Geographic features and populated places may cross administrative borders.