Parque Nacional Tierra del Fuego lies just north of Ushuaia and is Argentina's first coastal national park. We spent a day exploring the trails and relaxing. We wandered along the coastal path, taking in all the wildlife. It was about a 3 1/2 hour hike that took us through the forests. We finished the walk at Lake Roca in time for lunch. What a wonderful day! I've never seen so many different kinds of trees!