Afternoon: Cuernos del Paine
From Lago Grey the road swings back east through the heart of the park, arriving by early afternoon at Salto Grande — the falls where Lago Nordenskjöld drains into Lago Pehoé. The falls are impressive in themselves, a churning cascade where the two lakes meet, but they are also the trailhead for the hike to the Mirador Cuernos del Paine. The trail runs approximately 3.5 kilometres along the northern shore of Lago Nordenskjöld, flat and well-marked, before arriving at a bench viewpoint looking directly at the Cuernos del Paine — a full two-hour return from the car park.
The Cuernos — the Horns — are among the most geologically legible peaks in Patagonia. Each is a wall of pale Miocene granite topped by a jagged dark crown of metamorphic rock: remnants of the older sedimentary layer that once covered the intrusive granite laccolith beneath. The granite intruded roughly 12.6 million years ago; the contrast between the two rock types, most visible here from the lake shore, tells the story of that intrusion with unusual clarity. Glaciers during the Pleistocene stripped most of the darker cap away from the towers themselves but left it draped across the Cuernos, producing their characteristic two-toned silhouette. The viewpoint faces west across the turquoise water of the lake, with the full Paine Massif — Paine Grande, Valle del Francés, and the Cuernos themselves — arranged across the horizon.
Arrival: Las Torres
Camping Sodexo sits at the Las Torres complex on the eastern side of the park, at the base of the Ascencio Valley — the trailhead for the ascent to the Torres del Paine viewpoint, the most visited single hike in Patagonia. The campsite is on open pampa with the three granite towers visible to the northwest when conditions allow.
The towers themselves — Torre d'Agostini, Torre Central, and Torre Monzino, named after the Italian brothers who first ascended them in 1957 — rise to between 2,260 and 2,500 metres above sea level. Unlike the Cuernos, their sedimentary cap has been entirely eroded away by glaciation, leaving only the bare granite, pale and almost luminous in afternoon light. Lady Florence Dixie, who visited in 1880 and was among the first foreign travellers to describe the area, called them Cleopatra's Needles. The park was established in 1959, initially as the Parque Nacional Turismo Lago Grey, and took its present name and boundaries two years later.