- Category: Water Feature
- Type: Island
- Latitude/Longitude: 53°13'21"N 4°9'37"W
- Eastings/Northings: 255858, 371684
- OS Grid: SH558716
- Mapcode Local: GBR 5N.0XHC
- Mapcode Global: WH547.282B
Location and coordinates are for the approximate centre of Half Tide Rock within this administrative area.
Geographic features and populated places may cross administrative borders.