Trekking in Patagonia presents a traveler with a number of challenges. With the growing number of visitors year after year it becomes increasingly difficult to find an adventure that sets itself apart from the rest. Being the southernmost trek in the world, the Dientes de Navarino (Fangs of Navarino) trek on Navarino Island, Chile provides a unique and challenging experience for even the most experienced adventurer. Even getting to the southernmost trek in the work is an experience in and of itself.  From the moment you first view the island from the airplane as you fly over the historic Beagle Channel, the scenery and terrain are breathtaking.  You always have…