We spent 3 days in El Chalten. We did 3 treks. The little one to the waterfall (Chorrillo del Salto) we did under bad weather conditions (rain/windy). The second one was the best. We walked to Lago Capri and then up tot Poincenot. Instead of going up to Lago the los Tres we turned right to Hosteria El Pilar. From there we took a taxi back tot El Chalten. The trail is approximately 18 km and very recommendable! The last trail, also beautiful, was to the first viewpoint of Lago Torre.