
easy
9–10 hours
Comfortable walking on flat, uneven ground at altitude (up to ~3,000 m); able to stand and stroll for 15–30 minutes at a time.
From Potrerillos’ wind-riffled reservoir to Puente del Inca’s mineral bridge and the Aconcagua lookout, this full-day Andes drive delivers big scenery with minimal walking. Expect swift weather shifts, high altitude air, and a classic view of the Americas’ highest peak.
Dawn spreads a pale wash over Mendoza as the road slips west, trading vineyards for bare, muscular mountains. Route 7 climbs in purposeful switchbacks, the Mendoza River shouldering along beside it, urging you deeper into the Andes. By the time you roll up to Potrerillos Dam, the reservoir is catching early light and the wind is already at work, tugging at jackets and pushing ripples toward the shore.

Wind, strong sun, and sudden chill are common above 2,500 m—bring a light down or fleece, windproof shell, and sun hat.
Altitude is the stealth challenge; sip water throughout the drive and during the short Horcones walk.
Apply SPF 30+ and wear sunglasses with UV protection—Andean glare can be intense even on cool days.
The route includes curves and elevation gains; if you’re prone to car sickness, take medication 30 minutes before departure.
General San Martín’s Army of the Andes crossed these corridors in 1817; the defunct Transandine Railway once linked Mendoza to Chile, traces of which are visible along RN7.
Stay on marked paths in Aconcagua Provincial Park to protect fragile alpine soils and vegetation. Pack out all trash and avoid disturbing wildlife in this arid ecosystem.
Mountain gusts funnel through the valleys—keep heat in and wind out.
Low hikers or trail shoes handle gravel paths around viewpoints and the Horcones area.
High UV at altitude makes sun protection non-negotiable, especially December–February.
summer specific
Staying hydrated helps with altitude and energy during this long day.