- Category: Water Feature
- Type: Island
- Latitude/Longitude: 50°13'7"N 4°48'18"W
- Eastings/Northings: 199983, 39174
- OS Grid: SW999391
- Mapcode Local: GBR ZX.K756
- Mapcode Global: FRA 08TG.3T9
Location and coordinates are for the approximate centre of Maen-lay Rock within this administrative area.
Geographic features and populated places may cross administrative borders.