1 guide for 3/4 clients. Here we find climbs such as the normal routes of Nevado Ojos del Salado, Cerro Marmolejo, Volcán San José or Cerro el Plomo, and also some volcanoes such as Llaima, Lanín, Mocho Choshuenco. A 1:6 ratio is possible when clients can climb on their own: they can lead the entire route and descent without the direct work of the guide. In these cases, the role of the mountain guide is technical director, supervising the performance of the teams and as a local liaison for the logistics of the expedition.