A low-angle interior shot shows the back of several people seated on yellow benches, moving slowly through a dimly lit cave. The camera is positioned behind the seated individuals, looking forward into the cave. Above them, the cave ceiling is high and uneven, displaying dramatic rock formations in shades of dark gray, black, and lighter white or pale gray, illuminated by unseen artificial lights. Some stalactites are visible hanging from the ceiling. The people are mostly silhouetted, with some details of their heads and shoulders visible. The movement suggests they are on a guided tour, possibly on a tram or train.