- Category: Water Feature
- Type: Island
- Latitude/Longitude: 51°36'59"N 5°2'23"W
- Eastings/Northings: 189648, 195245
- OS Grid: SR896952
- Mapcode Local: GBR G6.34JY
- Mapcode Global: VH1SB.LMHL
Location and coordinates are for the approximate centre of Pen-y-holt Stack within this administrative area.
Geographic features and populated places may cross administrative borders.