- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°57'56"N 3°49'31"W
- Eastings/Northings: 277500, 342500
- OS Grid: SH775425
- Mapcode Local: GBR 63.K18R
- Mapcode Global: WH66P.6QN6
Location and coordinates are for the approximate centre of Llyn Serw within this administrative area.
Geographic features and populated places may cross administrative borders.