You beat me to it...Penally Range Control 01834 845950
Still had the number on my phone from some climbing up there. Incidentally opposite the camp is a very well preserved block ofWW1 training trenches, have a look on google earth or follow the link
This is a 3m x 3m location in Penally, Pembrokeshire. See it on what3wordsw3w.co
This 3 word address refers to an exact 3m x 3m location. Tap the link or enter the 3 words into the free what3words app to find it.