The Annapurna Tilicho Lake and Thorong La Pass Trek is a challenging and deeply rewarding high-altitude journey that brings together some of the most striking landscapes in Nepal. This 11-day trek follows a classic route through the Annapurna region, rising from the subtropical lowlands of Besisahar to the dry trans-Himalayan terrain of Manang and Mustang. The route showcases dramatic ecological change, cultural depth, and sustained mountain exposure.

The trail ascends gradually through river valleys, terraced hills, and alpine forests before reaching the upper Manang region. In the lower sections, daytime temperatures generally range between 18°C and 25°C, creating comfortable walking conditions. As altitude increases, the air becomes cooler and drier. In villages such as Pisang and Manang, daytime temperatures typically range from 10°C to 15°C, with colder nights. These settlements reflect strong Tibetan Buddhist influence, seen in monasteries, prayer flags, and traditional stone architecture.

A major highlight of the trek is the visit to Tilicho Lake at 4,920 meters. Surrounded by glaciers and steep mountain walls, the lake sits in a stark alpine environment. Daytime temperatures near Tilicho Lake usually range between 5°C and 10°C, while nighttime temperatures can drop below freezing. The approach to the lake requires steady pacing and careful acclimatization, but the remote setting and scale of the landscape make the effort worthwhile.

The highest point of the trek is the crossing of Thorong La Pass at 5,416 meters. This section demands an early start and favorable weather conditions. At the pass, daytime temperatures often remain between 0°C and 5°C, and early morning temperatures can fall to -10°C or lower, especially in autumn. From the top, trekkers are rewarded with expansive views across the Annapurna and Dhaulagiri ranges before descending into the Mustang region.

After the pass, the trail leads to Muktinath, a sacred site revered by both Hindus and Buddhists. The route then continues through the Kali Gandaki Valley to Jomsom, where the trek concludes with a flight back to Pokhara.

This trek is ideal for trekkers seeking a compact yet demanding Himalayan adventure that combines a high-altitude lake, a major mountain pass, and culturally rich mountain villages. Ticino Treks operates this journey with a strong focus on acclimatization, safety, and experienced local guidance.

Travel Notes

Best Time to Trek

• Spring (March to May): Stable weather, moderate daytime temperatures, and clear mountain views

• Autumn (September to November): Dry conditions, crisp air, and excellent visibility at high altitude

Temperature Range (Approximate)

• Lower elevations (Besisahar to mid-hills): 18°C to 25°C during the day

• Manang region: 10°C to 15°C during the day, colder at night

• Tilicho Lake area: 5°C to 10°C during the day, below freezing at night

• Thorong La Pass: 0°C to 5°C during the day, down to -10°C or lower in early morning

Permits Required

• Annapurna Conservation Area Permit (ACAP)

• TIMS Card

Experience and Preparation

• Previous trekking experience recommended

• Good physical fitness and proper acclimatization essential

• Tilicho Lake and Thorong La sections require endurance and cold-weather readiness

Accommodation and Trek Style

• Teahouse trek with basic but comfortable lodge accommodation

• Meals provided during trekking days

• Kathmandu and Pokhara meals are not included