- Category: Water Feature
- Type: Island
- Latitude/Longitude: 49°58'39"N 6°18'4"W
- Eastings/Northings: 91734, 17490
- OS Grid: SV917174
- Mapcode Local: GBR BXTR.4HS
- Mapcode Global: VGYBR.QTMG
Location and coordinates are for the approximate centre of Pernagie Isle within this administrative area.
Geographic features and populated places may cross administrative borders.