- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°43'23"N 4°17'46"W
- Eastings/Northings: 263338, 872700
- OS Grid: NH633727
- Mapcode Local: GBR H8R9.QT2
- Mapcode Global: WH3D4.Z4BN
Location and coordinates are for the approximate centre of Holly Island within this administrative area.
Geographic features and populated places may cross administrative borders.