A turquoise glacial lake cradled beneath a snow-draped peak, all within a single day from Cusco — Humantay Lake (Laguna Humantay) has become one of Peru's most popular day hikes for good reason. It is short, intensely scenic, and accessible to most travelers with a little preparation. This guide covers everything you need to know to enjoy it.

Where it is and what to expect

Humantay Lake sits at around 4,200 m on the slopes of the Salkantay massif, a few hours' drive from Cusco. The day typically starts very early with a scenic transfer to the trailhead at Soraypampa (about 3,900 m), a hearty breakfast, and then the hike up to the lake, where the glassy turquoise water and the glacier above create one of the most photographed scenes in the Andes.

The hike: distance and difficulty

The trail to the lake is short but steep — roughly 2 to 3 kilometres of ascent that climbs around 300 metres to the lakeshore. Most hikers take 1.5 to 2.5 hours to reach the top at a steady pace. It is not technical, but the altitude makes the climb feel harder than the distance suggests. Take it slowly, and the effort is very manageable for anyone with reasonable fitness.

Altitude is the real challenge

As with most things near Cusco, altitude is the key factor. The lake sits above 4,200 m, so acclimatize in Cusco or the Sacred Valley for at least two days before the hike. Walk slowly, breathe deeply, sip water often, and consider coca tea to ease the effects. Horses are usually available for part of the climb if you would rather save your energy for the final stretch.

The best time to go

Humantay can be hiked year-round, but the dry season (May to September) offers the clearest skies and the best chance of that vivid turquoise color under sunshine. Arriving early also means fewer crowds and calmer water for reflections. The wet season brings greener surroundings but more cloud and a higher chance the lake looks grey rather than turquoise.

What to bring

• Layered clothing — cold at the lake, warmer on the climb
• A waterproof jacket; mountain weather changes fast
• Strong sunscreen, sunglasses and a hat for fierce high-altitude UV
• At least 1.5 litres of water and some snacks
• Sturdy shoes with grip for the steep, sometimes loose trail
• A small daypack and your camera
• Cash for the entrance fee, snacks or an optional horse

Tips for a great day

• Start as early as your tour allows for the best light and fewer people
• Pace yourself on the climb — it is short, so there is no need to rush
• Pause often to catch your breath and enjoy the views
• Respect the site: it is sacred to local communities, so leave no trace
• Bring layers you can quickly add at the windy, cold lakeshore

Combining it with the Salkantay Trek

Humantay Lake is a perfect standalone day trip, but it is also the highlight of day one on the multi-day Salkantay Trek. If you love it and want more, the Salkantay route continues from this same area deep into the mountains toward Machu Picchu.

Frequently asked questions

How hard is the Humantay Lake hike? Moderate. It is short but steep and at high altitude. Most reasonably fit, acclimatized travelers complete it comfortably at a slow pace.

How high is Humantay Lake? The lake sits at roughly 4,200 m, with the trailhead at Soraypampa around 3,900 m, so acclimatization beforehand is important.

Can I ride a horse up to the lake? Yes, horses are usually available for much of the ascent, which is helpful if the altitude or climb feels challenging.

Do I need to acclimatize first? Yes. Spend at least two days in Cusco or the Sacred Valley before the hike to reduce the risk of altitude sickness.

Ready to see the turquoise jewel of the Andes?

Humantay Lake delivers an enormous reward for a single day's effort — provided you acclimatize and pace yourself. Explore our guided Humantay Lake day tours and Salkantay treks, and we will handle the early start, transport and trail so you can simply soak up one of the most beautiful sights in Peru.