Ausangate: Peru's Sacred 6,384m Glacier Trek

Ausangate is a glaciated peak in the Cordillera Vilcanota, about 100 km southeast of Cusco, and it anchors one of the Andes' most rewarding high-altitude circuits. The mountain itself stands at 6,384 m (20,945 ft), making it the fifth-highest summit in Peru, and the surrounding terrain holds turquoise lakes, hot springs, and herds of alpacas. Most travelers reach the trailhead at Tinki (3,800 m) after a 3-hour bus ride from Cusco (S/25–30), then continue to Upis (4,400 m) by shared truck. Unlike the Inca Trail, no government permit caps exist — access is managed by local communities charging entry fees of S/10–30, so you can plan without months of advance booking.

Routes and Key Highlights

The Classic Ausangate Circuit

The full circuit runs roughly 70 km (43 miles) around the massif, typically over 5 days and 4 nights, crossing high passes such as Palomani (5,200 m) and Q'ampa (5,050 m). Daily walking distances range from 10 to 16 km, and camps sit above 4,000 m every night. The reward is a rotating panorama of the mountain's north, east, and south faces, plus glacier-fed lakes like Pucacocha (4,700 m) and the remote hot springs at Upis. I found the stretch between Upis and Pucacocha especially quiet — we saw no other groups for six hours. Trekking companies charge US$600–900 for a guided circuit, covering guides, cooks, mules, and all meals; independent hikers pay only community fees and carry their own gear.

The 7 Lagoons Day Hike

For a one-day taste of Ausangate, the 7 Lagoons route from Pacchanta (4,200 m) is the most popular option. It's a 2- to 3-hour walk that passes a chain of glacial lakes — Pucacocha, Patacocha, Alqacocha, Qomercocha, Orco Otorongo, China Otorongo, and Azulcocha — each a different shade of green or blue. The trail gains about 400 m and tops out near 4,600 m, so it's manageable for hikers who have acclimatized for at least two days in Cusco. After the walk, soak in the Pacchanta hot springs (S/5 entry). Organized tours from Cusco start at US$40–65 and include transport, breakfast, lunch, and a guide; the entry fee to the community territory is usually S/20 extra.

Rainbow Mountain (Vinicunca) via Ausangate

The Ausangate region also offers a quieter approach to Vinicunca, the striped mountain that draws crowds from Cusipata. A 2-day trek from Quesiuno (4,326 m) to Rainbow Mountain lets you reach the viewpoint early, before the day-trippers arrive. The route crosses a 5,000 m pass and camps near Anata (4,885 m) with views of both Ausangate's glaciers and Vinicunca's mineral ridges. Rainbow Mountain sits at 5,200 m, and the colors are most vivid from 07:00 to 09:00 when the sun is low. This itinerary requires a licensed guide (enforcement has tightened since 2025), and tour operators charge around US$200–300 per person for the two days.

Planning Your Visit

Best Time and Weather

The dry season from May to September brings clearer skies and more stable trails, but nights routinely drop below freezing — expect -5°C to -10°C at camps. July and August are the busiest months, with up to 200 hikers on the circuit at peak times. April, October, and November offer a good balance: fewer crowds, greener landscapes, and daytime temperatures of 15–20°C, though afternoon rain showers are possible. I'd avoid January through March, when heavy rain turns the passes muddy and clouds often hide the peaks. Regardless of season, pack layers, a waterproof shell, and high-SPF sunscreen — UV radiation at 4,500 m is intense even on overcast days.

Altitude, Acclimatization, and Safety

Ausangate's trails start above 3,800 m, and most hikers sleep at 4,200–4,700 m. Acute mountain sickness is a real risk. Spend at least two nights in Cusco (3,350 m) before heading higher, and consider a day hike to nearby ruins like Sacsayhuamán (3,700 m) as a warm-up. Guides on organized tours carry oxygen bottles and first-aid kits; independent hikers should bring acetazolamide (if prescribed) and know the symptoms of HAPE and HACE. My advice: build in a rest day at Upis or Pacchanta before attempting any 5,000 m pass. The community-run hot springs at Pacchanta (S/5) and Upis (S/10) are excellent for recovery.

Permits, Fees, and What to Bring

There is no centralized permit system, but each community along the route charges an entry or maintenance fee. Budget S/70–100 in cash for the full circuit, covering fees at Tinki, Upis, and Chillca. The 7 Lagoons day hike typically requires a S/20 community payment, sometimes collected at a checkpoint near Pacchanta. Organized tours often exclude these fees, so confirm before booking. Cash is essential — there are no ATMs beyond Cusco, and the nearest reliable withdrawal point is in Tinki (limited). Bring small bills, a headlamp, water purification tablets (or a filter), and a warm sleeping bag rated to -10°C if camping. Hiking poles help on the steep, loose descents.

Frequently Asked Questions

Do I need a permit for the Ausangate Trek?

No government permit is required, unlike the Inca Trail. However, local communities charge entry fees of S/10–30 per person, collected in cash on the trail. For the full circuit, budget about S/70–100 total in community fees.

How high does the Ausangate Trek go?

The highest pass on the classic circuit is Palomani at 5,200 m (17,060 ft). The 7 Lagoons day hike reaches about 4,600 m, while Rainbow Mountain tops out at 5,200 m. Camps on the circuit sit between 4,200 m and 4,700 m.

Can I hike Ausangate independently, or do I need a guide?

Independent hiking is allowed and common, but you must be self-sufficient — carry all food, a tent, and a stove. Since 2025, the 7 Lagoons and Rainbow Mountain day routes require a licensed guide, and enforcement has increased. For the full circuit, guides are optional but recommended for navigation and safety.

What is the best month to see Rainbow Mountain's colors?

The dry season from May to September offers the clearest skies, with June and July being the driest. Arrive at the viewpoint between 07:00 and 09:00 for the most vivid colors. April and October also work well but may bring occasional rain.

How much does a guided Ausangate trek cost?

A 5-day guided circuit costs US$600–900 per person, including transport from Cusco, meals, camping gear, and mule support. A 1-day 7 Lagoons tour runs US$40–65, while a 2-day Ausangate–Rainbow Mountain trek costs US$200–300. Entrance fees are usually extra.