- Category: Water Feature
- Type: Island
- Latitude/Longitude: 50°13'11"N 3°39'42"W
- Eastings/Northings: 281549, 36856
- OS Grid: SX815368
- Mapcode Local: GBR QP.FLY3
- Mapcode Global: FRA 386F.Z4P
Location and coordinates are for the approximate centre of Pinnacles within this administrative area.
Geographic features and populated places may cross administrative borders.