A steep, high‑altitude day hike from Cusco rewards you with a turquoise glacial lake ringed by the Salkantay massif. This guide covers what to expect—terrain, timing and how to prepare for the altitude and weather.
More ways to explore the area's outdoor wonders
You crest a final rocky shoulder and the lagoon opens like a held breath: a sheet of turquoise glass sitting beneath the gray mass of the Salkantay range. Wind pulls at your jacket; the water answers with fingertip ripples that dare you closer. The climb to Humantay Lagoon (approx. 4,300 m / 14,100 ft) is short and steep, so the view arrives suddenly—and insists you stop.
Difficulty
moderate
Duration
11–13 hours
Fitness Level
Moderate fitness with some experience at sustained uphill walking; good cardiovascular baseline and prior altitude exposure recommended.
Wildlife
History
The lagoon lies on routes used by local communities in the shadow of Salkantay; mountains here are considered apus and feature in Andean ritual practice.
Conservation
High visitor numbers stress fragile alpine vegetation and water quality; stick to established trails, avoid single‑use plastics and follow local guide instructions to minimize impact.
Reserve your spot on the Humantay Lagoon today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Acclimatize before the hike
Spend 24–48 hours in Cusco to reduce acute altitude effects; avoid heavy drinking the night before.
Bring sun protection
High altitude sun is strong—wide‑brim hat, sunglasses, and SPF 50+ are important even on overcast days.
Use trekking poles
Poles reduce knee strain on steep descents and help maintain balance on scree sections.
Carry water and snacks
Bring at least 2 liters of water and electrolyte snacks—there are no reliable water stations on the trail.
Hiking boots
Sturdy, broken‑in boots give ankle support on rocky, uneven trail sections.
Trekking poles
Poles help on the steep ascent and reduce impact on the knees during descent.
Insulating mid‑layer
A warm fleece or down layer for cold, windy conditions at the rim.
winter
Sun protection kit
Sunglasses, SPF 50+ sunscreen and a brimmed hat for intense high‑altitude UV exposure.
summer