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18
           Deep freeze




               Meaning “glacier of rivers,”

                Vatnajökull is the largest glacier in
                  Europe, covering almost 10 percent

                   of Iceland. Underneath the ice is
                     a frozen world called the Crystal
                        Caves, a hidden labyrinth of

                         blue chambers and tunnels
                         that change with the seasons.




                                                         The ice is 3,300 ft
                                                         (1,000 m) deep at
                                                         its thickest point.





       ADVANCING ICE











      Stretching for 19 miles (30 km),
      Perito Moreno in Argentina
      is an unusual glacier because
      it is advancing, rather than
      shrinking. Heavy chunks of ice
      break off regularly, dropping
      into the shimmering waters
      of Lake Argentino.





   US_018_019_309600_Deep_freeze.indd   18                                19/12/17   12:55 pm
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