Ushuaia, Argentina: Ushuaia is a city located in Tierra del Fuego, Argentina, often referred to as the "End of the World." It is the southernmost city in the world and serves as a gateway to Antarctica. Explore the Tierra del Fuego National Park, known for its breathtaking landscapes of mountains, forests, and lakes. Take a boat tour through the Beagle Channel to spot wildlife, including seals, sea lions, and penguins. Visit the nearby penguin colonies on Martillo Island or embark on an adventurous cruise to Antarctica. Ushuaia offers a unique blend of rugged wilderness and adventure.