Battlefield Historian:
Setting the underwater camera up
Battlefield Historian:
Opening up the Petit Douve mineshaft
Battlefield Historian:
Watching the camera descend 30m
Battlefield Historian:
Sending the camera down the shaft
Battlefield Historian:
Watching the results on the screen
Battlefield Historian:
German tunnels, Messines
Battlefield Historian:
German tunnels, Messines
Battlefield Historian:
Roof of German tunnels, Messines
Battlefield Historian:
Opening the German tunnels, Messines
Battlefield Historian:
Going in the German tunnels, Messines
Battlefield Historian:
Going in German tunnels, Messines
Battlefield Historian:
German tunnels, Messines
Battlefield Historian:
German tunnels, Messines
Battlefield Historian:
Roof of German tunnels, Messines
Battlefield Historian:
Inside the German tunnels, Messines
Battlefield Historian:
Inside the German tunnels, Messines
Battlefield Historian:
Inside the dugout, Messines
Battlefield Historian:
Trench & dugout, Messines
Battlefield Historian:
Stick grenade store, Messines trench