Cerro Bayo Trek Above Potrerillos Lake: A Full-Day Precordillera Hike from Mendoza
Difficulty
moderate
Duration
6–8 hours (3.5–4 hours on trail)
Fitness Level
Active hikers comfortable with 600–800 m elevation gain at moderate altitude will enjoy this route.
Overview
Climb Cerro Bayo above the turquoise expanse of Potrerillos Lake for a day of big views, desert scent, and condor air. This guided trek from Mendoza blends geology, local flavor, and summit-time picada with practical access just an hour from the city.
Cerro Bayo Trek Above Potrerillos Lake: A Full-Day Precordillera Hike from Mendoza
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Dawn pulls you west out of Mendoza as the Andes shake off their shadows. The road threads the Mendoza River, which hustles down from ice and rock, daring you to follow. Ahead, Potrerillos flashes turquoise—wind skimming the surface like a hand across silk—and Cerro Bayo rises beyond it, a tawny shoulder of the Precordillera inviting a steady climb.
Adventure Photos
Adventure Tips
Start before the wind
Mornings are calmer and cooler; plan to be on the trail by 8–9 a.m. to avoid heat and potential Zonda winds after midday.
Hydrate for dry air
Carry at least 2 liters per person; the arid Precordillera dehydrates faster than you think, even on cooler days.
Armor up for UV
At ~2,200–2,400 m, sun intensity is high. Wear a brimmed hat, SPF 50+, and sunglasses with UV protection.
Mind the scree
Loose gravel on the descent can be slick. Use trekking poles and keep short steps to stay balanced.
Local Insights
Wildlife
- Andean condor
- Culpeo (Andean fox)
History
Potrerillos Dam, completed in the early 2000s, created the lake that now supplies Mendoza with water and hydroelectric power. Long before, Huarpe communities traveled these valleys, trading across the Andean foothills.
Conservation
Stay on established paths to protect fragile jarilla and tomillo shrubs. Pack out all trash and minimize wildlife disturbance, especially during condor nesting periods.
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Adventure Hotspots in Mendoza
Frequently Asked Questions
Recommended Gear
Lightweight hiking boots with aggressive tread
Secure footing on scree and uneven switchbacks makes the descent safer and more enjoyable.
2L hydration system or bottles
Dry air and sun exposure make consistent sipping important throughout the climb.
Windproof shell
Summit breezes can be sharp even on sunny days; a compact shell blocks gusts year-round.
spring specific
Wide-brim sun hat and high-SPF sunscreen
High-altitude UV can be intense; protect face and neck during exposed sections.
summer specific