Commonly known as “El Callao”, is the lowland area that in a little more than 25 kilometers connects the northwest shore of Todos los Santos and the western shore of Rupanco Lake. A well-marked trail immersed in the rainforest, flanked by steep mountains and a remote mountain range. We will start our hike at “Las Gaviotas” on the north side of the valley, on the south side of Rupanco Lake. On the first day we will pass through Los Quetros lagoon to get directly to the “Termas de El Callao”. We will spend the first-night camping at the hot springs of the river “Sin Nombre”. In the middle of our trip, we will move up to the heights. We will focus our attention on the “Los Cenizos” cordon. A day’s hike will take us to the top of the “Cenizo” hill, from where the full view of the Lake District can only get better as we contemplate an unique postcard view of the Puntiagudo volcano. On the way back we will continue to the “Refugio Dos Condores” belonging to the Yefi family to rest with a good home cooked meal and on our third day we will discover the Todos Los Santos lake and sail in the direction of the Osorno and La Picada volcanoes. The program includes transportation to the beginning of the trail, navigation of Lake Todos Los Santos, and the return from Petrohue to Puerto Varas. In addition to meals during the days (dinner, D1 and D2; breakfast D2 and D3; lunch D1) and accommodation. In case the accommodation with the Yefi family is not available, we will camp the two nights in the hot springs of El Callao!