St Martins Battery was constructed in the 1870's and was updated at the begining of the second world war, part of this included extending the already present Battery Magazine into a deep underground shelter, It has suffered smoke damage and several collapses but is still worth seeing all the same, Access has also recently become alot easier too.
Visted on my Jack so was a quick in & out !
On with some pics
Looking back at the entrance
Collapsed
Looking back up at the main staircase
Into the main entrance area
Thanks for looking at my pics
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