- Category: Water Feature
- Type: Island
- Latitude/Longitude: 59°57'59"N 1°21'3"W
- Eastings/Northings: 436344, 1120360
- OS Grid: HU363203
- Mapcode Local: GBR R20D.9PK
- Mapcode Global: XHD42.TR79
Location and coordinates are for the approximate centre of Coar Holm within this administrative area.
Geographic features and populated places may cross administrative borders.