- Category: Water Feature
- Type: Island
- Latitude/Longitude: 51°58'39"N 5°5'11"W
- Eastings/Northings: 188122, 235527
- OS Grid: SM881355
- Mapcode Local: GBR CF.KF11
- Mapcode Global: VH1QK.SKB7
Location and coordinates are for the approximate centre of Carreg Dandy within this administrative area.
Geographic features and populated places may cross administrative borders.