Upper Mustang Trek to Lo Manthang

The trek that works when nothing else does

Upper Mustang sits north of the main Himalayan chain, in the rain shadow of Annapurna and Dhaulagiri. The monsoon that shuts down trekking across the rest of Nepal from June to August arrives here as cloud and very little water.

That single geographical fact makes this the most useful trek in the country. If your holiday falls in July, everything else we sell is either a wash-out or a bad idea, and Mustang is genuinely in season — dry, warm, and green in the irrigated village fields against red rock.

It is also, independently of the calendar, one of the two or three most interesting places in Nepal. The rain shadow that keeps the weather out kept the culture in: this was a separate Buddhist kingdom, closed to outsiders until 1992, and what survives is Tibetan in a way that Tibet itself, after the twentieth century, largely is not.

Lo Manthang, and the kingdom of Lo

Lo Manthang at 3,840 m is a walled town of whitewashed houses built around a former royal palace, laid out in the fifteenth century and still substantially intact. Its monasteries — Jampa Lhakhang and Thubchen among them — hold wall paintings of that period, some restored in recent decades and some not.

Mustang was a kingdom in its own right for centuries, then a semi-autonomous principality within Nepal. Nepal formally ended the monarchy's status in 2008. What that means for a visitor is a place where the architecture, the language, the religion and the agricultural year are Tibetan, inside Nepal, and where that has not been curated for you.

The sky caves, which are the strangest thing here

North of Lo Manthang at Chhoser, and in cliffs throughout the district, are thousands of man-made caves cut into vertical rock faces — some in clusters five storeys high, reachable now only by ladder, and originally connected internally.

Nobody is entirely certain why they were built. They have been used as burial chambers, as dwellings, as meditation cells and as refuges, and archaeological work in recent decades has found human remains and manuscripts dating back thousands of years. Standing at the bottom of a cliff with two hundred windows in it is one of the genuinely unexplained sights in the Himalaya.

We include a full day at Lo Manthang and a trip to the Chhoser caves, because arriving at the walled capital and turning round the next morning is the commonest mistake on this trek.

The permit, and what it costs you

Upper Mustang is a restricted area with the most expensive permit regime in Nepal outside Dolpo.

Rule	What it means
Restricted Area Permit required	Agency issued only — you cannot buy one yourself
No minimum party size	The two-person rule was dropped in March 2026
Licensed guide mandatory	A condition of the permit
Priced per person for a fixed period	Extra days beyond it cost more, per day
ACAP also required	Mustang sits within the Annapurna Conservation Area
Checked at Kagbeni	The boundary of the restricted zone

The permit is a significant part of the price of this trek and it is included. It is also the reason Mustang is not crowded, and having seen what unrestricted access has done to other trails, we think that is money well spent rather than a tax.

How hard is it?

Moderate, and easier than most treks of this length. The maximum altitude is around 4,010 m at Nyi La, you sleep no higher than 3,840 m, and the daily walking is five to seven hours on good trails.

Three things make it tiring rather than difficult. The wind, which rises predictably through the middle of the day in the Kali Gandaki and blows dust; the aridity, which dehydrates you faster than you notice; and the profile, which rolls up and over ridge after ridge rather than climbing steadily. Most people find the wind the memorable part.

A jeep road now runs much of the way to Lo Manthang. We route away from it where a walking trail exists, and we tell you honestly that some sections share it.

The road, and being straight about it

This deserves its own section because it changes the trek and operators tend not to mention it. A rough road reaches Lo Manthang, and jeeps use it. You will see vehicles, and on some stretches you will walk on it.

We minimise that by using the old trails over the ridges where they survive, which is more climbing and better walking. Some clients ask us to build a jeep-supported version that drives the dull sections — we will do that on request and it turns this into a nine or ten day trip. We do not do it by default, because the walking between Ghami and Tsarang is the best part of the route.

Tiji, if your dates allow

The Tiji festival at Lo Manthang runs over three days in May and is the significant event in the Mustang year — masked dances in the palace square, monks from Choede monastery, and the whole district present.

It is the best time to be there and the hardest time to get a bed. If you want Tiji, contact us months rather than weeks ahead; the exact dates follow the Tibetan calendar and shift year to year, and accommodation in Lo Manthang is finite.

If May is the only month you have and Tiji is full, the Upper Mustang region page sets out what else is on in the valley, and the Annapurna Circuit shares the Jomsom road head if you would rather walk south instead. For a comparable Tibetan-culture trek at far greater length and remoteness, Upper Dolpo is the other side of the same coin.

Getting there

Drive or fly to Pokhara, then either the short flight to Jomsom or the long drive up the Kali Gandaki. The Jomsom flight is spectacular, takes twenty minutes, and is cancelled often — it flies early because the valley wind makes later landings unsafe.

We plan on the road and treat the flight as an upgrade, because a group stuck in Pokhara for two days waiting on weather has lost the trek rather than a morning.

Season

March to early November, which is a longer window than any other trek we run. May and June are excellent and warm. July and August work, which is the whole point — expect some cloud and a little rain rather than a monsoon. September to early November is clear, cold at night, and the best visibility.

Winter is the one to avoid: Lo Manthang is bitter, much of the population moves to lower ground for the season, and many lodges close.

Where this trek goes

• Upper Mustang — A former Tibetan kingdom in the rain shadow north of the Annapurnas
• Muktinath & Jomsom — A temple at 3,800 m held sacred by Hindus and Buddhists alike, in the arid Kali Gandaki valley
• Pokhara — A lakeside town at 820 m with the Annapurnas 30 km away

Related activities: Trekking in Nepal, Cultural & Heritage Tours.

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