The highest peaks of the largest mountain range in the world show all their immensity in this region. Some of these peaks were climbed for first time by the native people, who were practicing their sacred ceremonies getting closer to the sun and the stars. With the arrival of Europeans to the continent, the motivation to ascend the mountains changed, giving it a more sporty character. Since those times, several expeditions and adventurous people have been attempting to get the summits of these giant peaks. Today the Central Andes offer amazing opportunities to practice high altitude mountaineering. From expeditions of 4 days to climb peaks of 4000 meters high (13000 ft), up to great expeditions to climb the highest peak in the Western hemisphere, the Aconcagua, with its 6962 meters high (22840 ft).