From Pudeto, compare Salto Grande alone with the Mirador Cuernos continuation: Chile Travel describes both; Aitue gives 6 km/about 2.5 hours return from Salto Grande, plus road travel/rests. It offers massif/lake views without Base Torres’s major ascent, but remains exposed to wind.
From Las Torres through Ascencio valley and final moraine, Vértice lists Central–Base Torres–Central at approximately 21 km/8–10 hours return. Fit capacity, daylight, slower walkers and a dedicated return; do not add distant viewpoints. Compare the day hikes and independent/guided needs.
Lago Grey’s road shore, separately booked navigation and W-sector Refugio Grey are distinct. A shore visit promises neither glacier-face proximity nor ice walking. Confirm vessel check-in, boarding walk and shore return; park/room/W bookings do not include it automatically.
A road/day-walking example uses seven regional days: day 1 Natales supplies; day 2 transfer to a central/southern base, Pehoé viewing if time; day 3 Salto Grande/Cuernos; day 4 arranged Sarmiento-steppe or scenic outing; day 5 Grey shore or confirmed navigation; day 6 Natales return; day 7 departure. Six nights are four at one park-area base plus two Natales; only days 3–5 are full outings.
For essential Base Torres, adapt day 4, eastern base and all transfers to the commitment. Shorter walks suit mixed stamina; boat/guide dates may be less flexible than four room nights. Shorten by removing an outing, not a travel leg; add usable recovery/weather nights or compare the five-day itinerary.