This FA Lager was built during the German occupation as part of the Atlantikwall (Stützpunktgruppe Castricum). It is now a home for bats.
More information about Stützpunktgruppe Castricum can be found in Part 2 of the book 'Castricum en Bakkum tijdens de Tweede Wereldoorlog', written by John Heideman (2016).
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