The image shows a group of people walking through a tunnel. The tunnel appears to be underground and is made of concrete. The walls of the tunnel are painted in a light grey color and there is a large metal pipe running along the right side of the image. On the left side, there is an exit sign with an arrow pointing to the right. The people in the image are wearing blue jackets and carrying backpacks. They appear to be walking towards the exit sign. The image is taken from a low angle, looking up at the people.