The tunnel is about 426 meters long. From the elevator down to the end, you can walk along the tunnel to the opposite bank, take the elevator out from the opposite bank, and turn to the platform near the water. You can see the scenery of the opposite bank. On the other side, large cruise ships will also be docked. They are about 6-7 stories tall. The blue and white exterior decorations are very striking. Because you can see the scenery, it's worth walking, and you can see the Hamburg port from a long distance.