- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°6'54"N 3°49'34"W
- Eastings/Northings: 277873, 359107
- OS Grid: SH778591
- Mapcode Local: GBR 63.7M24
- Mapcode Global: WH65X.6Y8S
Location and coordinates are for the approximate centre of Llyn Sarnau within this administrative area.
Geographic features and populated places may cross administrative borders.