The video shows a train moving through a tunnel. The train is moving at a moderate speed and the tunnel is dimly lit. The walls of the tunnel are made of rock and have a rough texture. The train's headlights are on, illuminating the path ahead and casting shadows on the walls. The train appears to be a passenger train, with windows visible on the side. The tunnel is long and winding, and the train seems to be the only vehicle in the tunnel at the time of recording.