Many years ago I camped inside one of the caves. It was amazing. Unfortunately having been deamed dangerous by the powers that be, the caves have been blown up/destroyed.
Not that I know of.
I wouldn't classify anything I saw as a proper cave but there were certainly some very cool cave like formations.
No
I didn't see a lot of caves, per se, but the rock is brittle and forms indentations and interesting structures that are fun to explore.
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