A steep, high-altitude day hike from Cusco delivers a startling turquoise lake, glacial geology, and a palpable sense of Andean culture. This practical guide explains what to expect, how to prepare, and why acclimatization matters.
More ways to explore the area's outdoor wonders
You crest a dusty saddle and the Andes opens like a page: a bowl of turquoise water clinging to the shoulder of a grey moraine, wind scouring the surface and whispering uphill. Laguna Humantay sits high above the Apurímac valley, its color sharpened by glacial silt and an open sky that pushes light into the water.
Difficulty
challenging
Duration
10–12 hours
Fitness Level
Should be in good general fitness; able to hike uphill at altitude for 2–3 hours with breaks
Wildlife
History
The lake and surrounding peaks are part of the Andean Apu tradition; mountains here have long been venerated and feature in local Quechua rituals.
Conservation
High Andean environments are fragile—stay on established trails, pack out waste, and avoid disturbing vegetation and water sources.
Reserve your spot on the Laguna Humantay today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Acclimatize before you go
Spend 24–48 hours in Cusco to reduce altitude sickness risk; ascend slowly and avoid heavy exertion on arrival day.
Start early
Begin the minivan transfer at dawn to reach the trailhead, avoid afternoon storms, and enjoy clearer lake reflections.
Hydration and snacks
Bring 1–2 liters of water and electrolyte snacks even if meals are provided—altitude increases dehydration risk.
Footwear and traction
Wear sturdy hiking shoes with good grip; the final approach includes loose scree and steep steps.
Layered waterproof jacket
Windproof and waterproof layers keep you warm on cold, gusty summits and in sudden Andean showers.
Sturdy hiking boots
Support and traction on rocky, steep uphill sections reduce fatigue and slipping risk.
Water bladder or bottles (1–2 L)
Hydration is critical at high elevation; bring more than you think you'll need.
Sun protection (hat, sunglasses, SPF 30+)
High-altitude sun is intense—protect skin and eyes during the exposed ascent.