- Category: Water Feature
- Type: Island
- Latitude/Longitude: 50°24'47"N 5°7'36"W
- Eastings/Northings: 177956, 61705
- OS Grid: SW779617
- Mapcode Local: GBR Z9.N0GM
- Mapcode Global: FRA 074Y.QKD
Location and coordinates are for the approximate centre of Sarvan within this administrative area.
Geographic features and populated places may cross administrative borders.