Excellent tour. We went 2x years ago and the guides were very informative and fun. I was in the tunnel and taking pics up the staircase and the rest of thr group were halfway almost out? And as i was walking back looked down and there were sparking? Footprints following me. I was jogging backwards watching them and kinda freaked. Faster i went faster they went. Longest 70? or 80? Feet ever! Guide said soldiers had nails in their shoes that could have been the footprint shaped sparks.

Oh the black tunnel with the round like that was the exit never s3emed to get closer haha strange. Im sure it was my imagination but seemed real as hell

Long known to be haunted.👻