Dates: march-april and september-october. Duration: 7 days. Schedule: 1st day: Concepción city. Night in Hotel. 2nd day: Transport to National Park. Trekking to La Mesada. Night in refuge. 3rd day: From La Mesada to Los Nacimentos. Night in refuge/tent. 4th day: Trekking to the Falls and Shipton's house. Night in refuge/tent. 5th day: From Los Nacimientos to the Caves. Night in cave. 6th day: From the Caves to La Ciudacita. Back to Los Nacimientos. Night in refuge/tent. 7th day: Down to National Park's gate. Transport to Concepción. Night in Hotel. Price: 600 euros (one person), 400 euros (two persons), 325 euros (three persons) y 275 euros (more than three persons). Includes: Transport (Concepción - National Park - Concepción), meals, accomodation, personal insurance, general equipment and guiding service.