Full day trekking to Laguna de los Tres. Today we undertake, what many believe is the best hike in Los Glaciares National Park. Our 8 hour walk is quite a long day, but it is worth every step. Those not wishing to take the whole trek may take an easier option. Every turn of the trail offers a new and impressive landscape. Continue towards Laguna de los Tres, passing by Mt. Rosado and Mt. León, skirting Chorrillo del Salto River, with a breathtaking view of Fitz Roy, Saint Exupery and Piedras Blancas massifs. After lunch we will go on to Poincenot camp site. Crossing Río Blanco, we will come to the camp site with the same name where the ascent to Laguna de Los Tres starts, at the foot of Mt. Fitz Roy. We will continue our trek visiting a balcony from where we will have a spectacular view of Laguna Sucia, a beautiful greenish lagoon with small icebergs floating in it, 300 meters below us. Return to El Chaltén. Overnight at hosteria.