Herzog and Zeitlinger next visit Mount Erebus and interview volcanologists. A unique sequence follows which was shot in tunnels deep below South Pole station carved from snow and ice. Various trinkets and mementos, including a can of Russian caviar and a whole frozen sturgeon, are placed in carved-out shelves in the ice walls and preserved by the extremely cold and dry air. On the slope of the volcano, Herzog and Zeitlinger explore ice caves formed by fumaroles.