The slogan for the town of Ushuaia in southern Argentina is "the end of the world." The slogan for Puerto Williams, the main town on Isla Navarino (a small Chilean island off he coast of Ushuaia) plays on this: "beyond the old world," and it does at times feel like it is, too.
Puerto Williams might be a naval town but I rate it as the friendliest town in the world! I ended up in Puerto Williams on the suggestion of 2 fellow travelers who were going to hike Los Dientes, which is a multi-day hike. Whilst I wasn't prepared for multi-day trekking, I was prepared for a day hike to Cerro Bandera (620 m) to witness the stunning views of Puerto Williams and the Beagle Channel. The day hike is actually the start of Los Dientes trek. At the beginning of the trek there is a rain-forest with a large variety of fungi growing as well as some gorgeous wildflowers.
Given that Isla Navarino is so far south, be mindful of the season when you decide to go. During our visit in January (middle of summer) my friends had snow on their trek. Whilst it didn't snow in Puerto Williams I did have a fire burning constantly in the refuge.
Location:Isla Navarino, Chile