- Category: Water Feature
- Type: Island
- Latitude/Longitude: 51°23'44"N 3°11'55"W
- Eastings/Northings: 316696, 166979
- OS Grid: ST166669
- Mapcode Local: GBR HX.R83Z
- Mapcode Global: VH6FS.H5SW
Location and coordinates are for the approximate centre of Yays Sili within this administrative area.
Geographic features and populated places may cross administrative borders.