Our members study and investigate man-made and man-used underground places — from mines to railway tunnels, military defences to nuclear bunkers and everything in between.

Wood Lane Station (Central Line)

Wood Lane Underground Station

Ystrad Einon Copper Mine

Ystrad Einon Mine

Balaklava Soviet Submarine Base

Balaklava Soviet Submarine Base

Staplefield Patrol Auxiliary Unit

Staplefield Auxiliary Units OB

Facebook Instagram Twitter