K5 Railway Gun Tunnels, Calais

These tunnels, located a few miles south of Sangatte, housed one of the huge WW2 K5 railway guns. The main brick-lined train tunnel is cut into a large chalk quarry in the hillside, with unlined spurs heading off at intervals, which were probably used as storage areas. On the top of the hill above are the remains of a few concrete bunkers, one of which gave access to the train tunnel via five sets of stairs. The obliteration of the surface bunkers and surrounding area shows that the allies were well aware of the railway gun's location and were trying to put it out of action.

 Remains of surface buildings

 

Remains of a Tobruk

 More damaged remains

 

Inside the bunker

 

One of the rooms on the upper level

 

Tunnel leading down

 

One of the five or so staircases down

 

More stairs

 

Main railway tunnel

  

Looking up the stairs

 

 

End of the train tunnel

 

One of the spur tunnels