Hinging on the interest and ability of each traveler, during the morning we may trek towards the top of the Laco Volcano (5,300 m.a.s.l.) or choose a quieter walk following the trail of some old trooping route.By noon we will set off for Argentina through the crossing at Sico, a unique place in this area in which the mountains completely dominate the scene. Taking a few steps away from the customs office and losing oneself in this seemingly-endless space is a gift we may seldom be presented with. Breathe in deeply, close your eyes, and get ready for the sinuous journey that has only just started. The Andes wait, as do the countless marvels we will encounter along the way.We follow our travel through Abra del Acay, a zone that has been declared a natural monument and considered one of the highest highways in the world, with its 5,061 m.a.s.l. at its highest point. It is here, as well, where the mythical Ruta Nacional 40 that crosses Argentina North to South runs, and where the Calchaquí River is born, running down from the cold and dry mountains to the valley rich in thawing-waters, green agricultural fields and reddish hills.Late in the evening we shall reach our second encampment, La Quesera, a group of stone cabins lost amid the mountains that now let us plunge into the life and standpoint of the shepherds of this mountain range, the peacefulness and silence in which they live their day to day and, also, the joy and simplicity with which they welcome the few visitors that stop to greet them.Also there to greet us, will be our explora team. They will be our guides and cooks for the remaining part of the journey. Remoteness is no excuse; we shall enjoy a delicious dinner paired with great Argentinean wine.