- Category: Water Feature
- Type: Island
- Latitude/Longitude: 49°55'53"N 6°20'37"W
- Eastings/Northings: 88398, 12518
- OS Grid: SV883125
- Mapcode Local: GBR BXQV.WMT
- Mapcode Global: VGYBY.0Z6G
Location and coordinates are for the approximate centre of Green Island within this administrative area.
Geographic features and populated places may cross administrative borders.