Zona Austral run the trips out of El Chaltén that need a boat or a vehicle: navigation on Lago del Desierto, thirty-seven kilometres north, with views of Fitz Roy's northern side; kayaking on the same lake; the walk to the Huemul glacier; and transfers up the Río Eléctrico valley to trailheads further out.
Chaltén's own trails are free and start from the village, so this is how you reach the country beyond them. Office on San Martín, the main street; the pin marks that street. Book by WhatsApp.