- Category: Water Feature
- Type: Island
- Latitude/Longitude: 51°41'16"N 5°9'22"W
- Eastings/Northings: 181927, 203523
- OS Grid: SM819035
- Mapcode Local: GBR G3.JPSW
- Mapcode Global: VH1RW.KTWV
Location and coordinates are for the approximate centre of Halftide Rock within this administrative area.
Geographic features and populated places may cross administrative borders.