- Category: Water Feature
- Type: Island
- Latitude/Longitude: 53°0'29"N 1°45'58"W
- Eastings/Northings: 415774, 345670
- OS Grid: SK157456
- Mapcode Local: GBR 48V.J6Q
- Mapcode Global: WHCF4.VN18
Location and coordinates are for the approximate centre of Holmes's Islands within this administrative area.
Geographic features and populated places may cross administrative borders.