The Ausangate Trek is widely considered one of the most spectacular high-altitude treks in Peru — and the 4-day version is the sweet spot for most adventurous travelers. It circles Apu Ausangate (6,384 m), the highest peak in the Cusco region, crossing turquoise glacial lakes, red-rock valleys and remote alpaca-herding communities, and it can be combined with the famous Rainbow Mountain (Vinicunca).

This guide breaks down the 4-day itinerary day by day, how hard it really is, when to go, what to pack and what it costs — so you know exactly what to expect before you book.

Ausangate Trek 4 Days: Quick Facts

• Distance: around 45–50 km (28–31 miles)
• Duration: 4 days / 3 nights
• Highest point: Palomani Pass, about 5,200 m (17,060 ft)
• Difficulty: Challenging — high altitude, long days, cold nights
• Start/finish: Cusco (transfer to Tinki and back)
• Best season: dry season, May to September

Day-by-Day Itinerary

Day 1 — Cusco to Upis (via Tinki)

An early transfer takes you from Cusco to the trailhead near Tinki. From there you hike gently uphill through high pastureland to the first camp at Upis (around 4,400 m), often with a chance to soak in natural hot springs. It is a moderate first day designed to help you acclimatize.

Day 2 — Upis to Pucacocha (over Arapa Pass)

The most scenic day. You climb over the Arapa Pass (about 4,850 m) and are rewarded with a string of glacial lakes glowing in shades of turquoise and emerald beneath the Ausangate glaciers. Camp is near the Pucacocha lagoon, right under the mountain's north face.

Day 3 — Pucacocha to Huchuy Phinaya (over Palomani Pass)

The hardest day: a steady ascent to the Palomani Pass at roughly 5,200 m, the highest point of the trek. The views over the glaciers and the red valley are unforgettable. A long descent follows to the next camp near Huchuy Phinaya.

Day 4 — Rainbow Mountain and return to Cusco

An early start takes you to Vinicunca (Rainbow Mountain, about 5,050 m) before the day-tour crowds arrive. After soaking in the striped hillsides you descend to the road and transfer back to Cusco, arriving in the afternoon or evening.

How Difficult Is the Ausangate Trek?

Make no mistake: this is a hard trek. The challenge is not technical — there is no climbing — but the altitude is relentless. You spend almost the entire route above 4,400 m and cross two passes above 4,800 m, including one at 5,200 m. Add long daily distances and freezing nights, and it becomes a genuine test even for fit hikers.

The single most important thing you can do is acclimatize. Spend at least two or three nights in Cusco (3,400 m) before you start, walk slowly on the ascents, and stay hydrated. For a deeper look at preparing for the altitude, see our guide on Rainbow Mountain altitude and how to prepare.

Best Time to Do the Ausangate Trek

The dry season, from May to September, is by far the best time: clearer skies, firmer trails and the most reliable mountain views. Nights are very cold (well below freezing at the high camps), so warm gear is essential. The rainy season (November to March) brings mud, snow on the passes and hidden views, and is generally not recommended.

What to Pack

Layering is everything at this altitude, along with a four-season sleeping bag, trekking poles and a well-broken-in pair of boots. We cover the full list in our Ausangate Trek packing list.

How Much Does the Ausangate Trek 4 Days Cost?

Prices vary by operator and group size, but a quality 4-day guided Ausangate Trek with Rainbow Mountain typically ranges from roughly US$280 to US$450 per person. That usually includes transport, an English-speaking guide, meals, camping equipment and the horseman/support crew. Be cautious of very cheap options — at this altitude, an experienced guide and proper equipment are worth the money.

Why Choose the Ausangate Trek?

If you want dramatic, crowd-free high-Andean scenery and you have the fitness for the altitude, few treks match Ausangate. It combines the raw beauty of glaciers and coloured lakes with the bonus of Rainbow Mountain — all far from the busier Inca Trail and Salkantay routes.

Frequently Asked Questions

How high is the Ausangate Trek?

The trek's highest point is the Palomani Pass at about 5,200 m (17,060 ft). Rainbow Mountain, visited on the last day, sits at around 5,050 m.

Do you need to be very fit for the Ausangate Trek?

You should be in good physical condition and comfortable walking 6–8 hours a day at altitude. It is more demanding than the classic Inca Trail, mainly because of the elevation.

Can you do the Ausangate Trek and Rainbow Mountain together?

Yes. The most popular 4-day itinerary includes Rainbow Mountain (Vinicunca) on the final day, letting you see it early before the day-trip crowds arrive.

Do I need to acclimatize before the trek?

Absolutely. Spend at least two to three nights in Cusco or the Sacred Valley before starting to reduce the risk of altitude sickness.