I wouldn't be surprised to learn King's Bay or Kitsap also have "mysterious caves", although not-so-mysterious reinforced concrete seems cheaper and more common, and a quick google makes it seem like I'd have to do image searches on Яндекс or 百度 to find them...
(One of the sillier things about not having disbanded the cavalry until after I was born is that my country had bunkers which contained horse stalls and manure tips.)
No pens apparent from Google Maps unless the lift bays are reinforced (Faslane's isn't?), so I guess the USN is confident in their local air supremacy.
The Royal Navy apparently considered an underground base for its missile subs to be located in the Loch Glendhu area in the North West Highlands. However, the US Navy wanted its submarines to be based closer to an airport and the Royal Navy wanted to be close to the US Navy...
I'm rather glad Loch Glendhu is left unspoiled but it does mean the current infrastructure for UK nuclear submarines is rather close to Glasgow and the largest population centre in Scotland.
Military installations that exploit natural features are always interesting. It reminds me of some of the aircraft hangars used by the Swiss air force - carved right into the mountains.
Letting citizens of other countries near the South China Sea know about the purpose of the islands raises general awareness of the consequences of certain actions.
I wouldn't be surprised to learn King's Bay or Kitsap also have "mysterious caves", although not-so-mysterious reinforced concrete seems cheaper and more common, and a quick google makes it seem like I'd have to do image searches on Яндекс or 百度 to find them...
(One of the sillier things about not having disbanded the cavalry until after I was born is that my country had bunkers which contained horse stalls and manure tips.)