- Category: Water Feature
- Type: Island
- Latitude/Longitude: 56°0'37"N 5°25'55"W
- Eastings/Northings: 186146, 685026
- OS Grid: NR861850
- Mapcode Local: GBR DDZT.SNT
- Mapcode Global: WH0JJ.J6H8
Location and coordinates are for the approximate centre of Duncuan Island within this administrative area.
Geographic features and populated places may cross administrative borders.