- Category: Water Feature
- Type: Island
- Latitude/Longitude: 55°37'47"N 1°37'21"W
- Eastings/Northings: 423856, 637432
- OS Grid: NU238374
- Mapcode Local: GBR K33B.HN
- Mapcode Global: WHC0G.1RKD
Location and coordinates are for the approximate centre of Pinnacles within this administrative area.
Geographic features and populated places may cross administrative borders.