The adventure began the evening before I took this picture. We arrived late in a village nearby the tunnel. We took our gear out of the car and walked towards our intended camp site. Since it seemed to be in the middle of a hunting area, we decided to move out of this area. So we put up the site a little further, and in the middle of the field of fire, so it seemed in the morning as I walked past some hunter cabbins. We reconned the tunnel the same night and while we were in the tunnel a group of German youth was hanging around on the bridge near the tunnel exit. We did not want to be seen, we still had to camp there, so we explored the tunnel for some longer and went back when they were gone. After a bad night sleep due to the cold I took this picture of the northern entrance.