The W-shaped route along Ascension Valley and Valle del Frances takes in the most beautiful sights of the national park, but is suitable only for fit and experienced trekkers (of any age) who can walk for between 6 and 9 hours per day over four consecutive days with long uphill stretches. The itinerary offer accommodation in mountain refuges: Refugio Central next to Hosteria Las Torres has proper bed for two nights, then one night at each Refugio Chileno, Los Cuernos and Refugio Pehoé, all with a wholesome restaurants, shared rooms with 6 to 8 bunks, communal showers (hot water) and toilets. This trek is self-guided but once a month in season there is a group guided departure.