A compact, high-altitude climb leads to Humantay’s vivid turquoise waters and sweeping views of Salkantay. This private full-day trek from Cusco pairs dramatic mountain scenery with practical guidance for acclimatizing and staying safe at 4,200 m.
More ways to explore the area's outdoor wonders
The trail opens with high Andean light slicing across the valley as the van winds toward Soraypampa; at dawn the air feels thin and sharp and the mountains command attention. From the trailhead the path climbs steadily through puna grasses and pockets of ichu, gaining breath and perspective by the minute. The reward is Humantay Lagoon — a jewel-toned lake at roughly 4,200 m framed by the snow shoulders of Humantay and distant Salkantay — its surface often an impossible turquoise that dares you to look away.
Difficulty
moderate
Duration
11 hours
Fitness Level
Moderate fitness required: able to hike uphill for 1–1.5 hours at high elevation; prior acclimatization recommended.
Wildlife
History
Humantay is regarded by local Quechua communities as a sacred mountain lake (apu) and lies on terrain shaped by glacial action near the Salkantay massif.
Conservation
The high-puna ecosystem is fragile; stick to trails, pack out all waste, and avoid disturbing ritual sites to minimize impact.
Reserve your spot on the Humantay Lagoon - Full Day (Private Tour) today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Acclimatize first
Spend at least 48 hours in Cusco or the Sacred Valley before this hike to reduce altitude sickness risk.
Use the provided trekking poles
Poles reduce strain on knees and help maintain balance on steep, rocky sections of the ascent.
Start early for light and weather
Pickups around 5:30am put you on the trail in cool, stable morning conditions and maximize photo light.
Hydrate and monitor symptoms
Carry water, sip often, and stop if you have dizziness, severe headache, or shortness of breath — guides carry oxygen.
Sturdy hiking boots
Ankle support and solid soles help on steep, rocky ascent and descent.
Layered clothing and rain shell
Temperatures swing quickly; waterproof windlayer and insulating mid-layer are useful.
Sun protection (hat, sunglasses, sunscreen)
High UV at altitude makes sun protection essential even on cool days.
Hydration system or 2L water
Frequent small sips combat altitude effects and keep energy steady.