Upper and Lower Mustang: Permit, Wind, Caves and the Road to Lo Manthang

Upper Mustang lies north of Kangro La, while Lower Mustang covers the southern approach through the Kali Gandaki valley. Most treks use both: they start around Jomsom, cross the gorge country, visit Muktinath and finish in the walled town of Lo Manthang. The standard circuit takes 8 to 12 days, but that figure does not include the four-day side trip to Gyakar or Lar.

The Mustang Kingdom retained separate legal status until Nepal became a republic in 1959. Roads, Chinese-built tracks, old trade routes and a close relationship with Tibet shaped the district after that change. Today it is administered as part of Gandaki Province, but entry to Upper Mustang remains controlled, and movement above the gorge is a serious undertaking rather than an unrestricted road trip.

The restricted permit and the checkpoints

The Upper Mustang restricted-area permit costs US$500 per person for seven days. This is the Nepal Mountaineering Association permit, so it is not US$500 on top of a second NMA entrance fee. The permit is tied to a seven-day period and cannot be bought independently at the trailhead. A second US$500 payment buys another seven days if the Nepal Mountaineering Association approves an extension through your agency.

Book through a registered Nepali trekking agency in Kathmandu or Pokhara. The agency submits the permit application and arranges the mandatory licensed Upper Mustang guide. Allow at least seven days before departure, and preferably two weeks if travelling in March, April or October. The agency normally needs your passport details, nationality, photograph and dates. Most also set a two-person minimum for departures, so a solo traveller should be placed in a group before paying.

Checkpoints are not decorative. Police posts at and around Jomsom, Salleri or Bhesisuwor, Lho, Takam, Muktinath and sometimes Gyakar may inspect the permit. The exact sequence changes, but travellers should expect to stop at several of them. Carry the original passport used for the application, not only a photograph or an agency email. A mismatch in name, passport number or permit dates can cause a delay while the guide contacts the agency.

If the route also enters designated parts of Lower Mustang, the agency may add the separate US$50 Lower Mustang permit. That depends on the exact villages and roads used, so check the itinerary before departure rather than waiting for a checkpoint to explain the charge. Your agency should issue every required permit before you leave Jomsom. A full Upper Mustang permit is still not permission to enter Chinese territory.

The Kali Gandaki gorge and the wind coming through it

The Kali Gandaki runs between the Annapurna and Dhaulagiri massifs. At its deepest section, the river is roughly 5,500 metres below the surrounding rim, which is why it is commonly called the world's deepest canyon. The claim concerns vertical relief, not the width of the valley. From Jomsom, the river lies far below the town; the walking route continues through Kagbeni, Chhuksang and Ekal in the lower gorge.

The wind is the fact that catches most visitors unprepared. Afternoon westerlies are funnelled through the gorge and along the Kali Gandaki valley towards Upper Mustang. Sustained speeds of 30 to 50 kilometres per hour are common in exposed places, with gusts above 60 kilometres per hour. Loose dust makes the wind feel stronger. The air may look clear in the morning and still be too rough for an easy ridge walk by noon.

Walk early, stop at eleven and leave exposed passes for the morning. Guides usually schedule the Kangro La and Thorong La crossings before breakfast because that is when the wind is most dependable. Lunch often happens in the lee of a rock or building rather than on an exposed trail. By two in the afternoon, the wind can shake a vehicle door hard enough to rattle its windows. Tsering Dorje, who runs a family guesthouse in Lo Manthang, says his staff leave at seven, eat early and wait for the gusts to ease.

The wind also makes the walking feel longer than the map suggests. A signpost may be readable at 8 a.m. but hard to hold onto at midday. Snowfields on passes can turn into loose afternoon surfaces after they warm. Headlamps, gloves and a windproof outer layer belong in the day pack, not at the bottom of it. The sensible rule is simple: if the route requires exposure, start before the wind arrives.

Lo Manthang and the grid inside its wall

Lo Manthang stands at about 3,840 metres above sea level. It is a rectangular walled settlement roughly 1.5 kilometres long, with a planned grid of narrow lanes and low, flat-roofed houses. Much of the outer wall dates from the fifteenth century. The earthen buildings are usually whitewashed, and many still use mud brick beneath the plaster. From the ridge above town, the street pattern looks much more regular than it does on the ground.

The main palace stands near the centre of the grid. It is a large whitewashed building with four main storeys and several roof levels, often called the four-sided palace. Its roof terrace is the best practical view of Lo Manthang because it lets you see the lanes, courtyards, flat roofs and perimeter wall in one piece. The view is not limited to the town. On a clear morning, the brown plain around it and the peaks on the Tibetan border are visible beyond the wall.

The roof is worth an early visit, before the narrow stairs and entrance become busy. In peak season, tour groups fill the main square and guesthouses. Outside the festival period, it is calmer, although the altitude still makes an unhurried pace necessary. Most visitors stay in family guesthouses within walking distance of the palace. Rooms are simple, bathrooms are often shared, and heating is limited, but the central location saves repeated climbing through the lanes.

Lo Manthang is a working town, not a preserved set. You will see children walking to school, shopkeepers opening metal shutters, vehicles being repaired and livestock brought through the streets. April and May bring more walkers, while October brings festival traffic. The best local food is straightforward: dal bhat, thukpa, noodles, potatoes, momos and Tibetan bread. Accommodation and meals are discussed in more detail at the end of this article.

Choekhor Choekhor monastery and the cliff caves

Choekhor Choekhor Gompa stands in the upper part of Lo Manthang. The white, three-storey monastery contains a large prayer wheel and images associated with Chenrezig, the Buddhist figure of compassion. It remains an active religious building rather than a museum. Shoes are removed inside, conversation stays low, and photographs of monks or ceremonies should only be made after asking.

A short climb above the upper lanes reaches a small complex of rock-cut cells in the cliff. Some chambers served as hermit retreats, while others were used for storage and monastery work. They are easy to miss because there is no large visitor entrance. Ask a monk, guide or local for the current access rule rather than entering an open doorway on your own. The cells contain little, and several are still in religious use.

Allow 30 to 60 minutes for the climb and another hour if you stop at the cells. Start early because the exposed path catches the same wind as the rest of the valley. A small donation is accepted, but there is no need to treat the site like a ticketed attraction. This upper cliff complex should not be confused with Tangbe, the larger cave village two to three hours beyond Lo Manthang, or with the remote cave fields at Lar and Gyakar.

Lar and Gyakar, the remote Upper Mustang caves

Lar is reached from Muktinath, with two full walking days in each direction. The route climbs out of the Kali Gandaki basin and passes through dry, open country before reaching a cliff containing more than 100 cut cells. Some chambers are large enough to have served as dwellings, while others are little more than shelters for a hermit or seasonal storage rooms. It is a serious side trip, not a walk from Muktinath after breakfast.

Gyakar is two days each way from Lo Manthang, normally via Ghiling and the cliffs below Dhulkar. The caves occupy several separate groups rather than one single face. Both Lar and Gyakar are almost empty outside festival and school-holiday periods. On a normal weekday, a group of three or four may have the site to itself, although another trekking party can arrive without notice.

A basic lodge exists at Gyakar, but it has a limited number of beds and cannot be relied upon for a last-minute room. Accommodation around Lar is even less predictable, so many teams carry tents and arrange food in advance. There is little mobile signal, and shops are intermittent. Carry a full day's water, a headlamp, repair tape and a rubbish bag. Do not leave food paper or plastic in the cells, and do not enter locked or newly plastered chambers.

Each cave destination adds roughly four days to a standard Mustang circuit. Doing both Lar and Gyakar adds at least eight days and considerable food and porter costs. An 8 to 12 day itinerary cannot include both without cutting the main route into short, rushed sections. Choose one cave field if the Upper Mustang backcountry is the main purpose of the trip.

Muktinath, Kangro La and the old Tibetan trade route

Muktinath lies in Lower Mustang at about 3,760 metres, close to the upper entrance of the gorge. The settlement is small, but the temple complex draws pilgrims from Nepal and India. The most recognisable feature is a row of 108 water taps fed from a spring. The water is believed to be purifying, and pilgrims rinse or drink from it according to their custom. The local name refers to release from worldly attachment, although the original Sanskrit and Tibetan names are used differently in different accounts.

Kangro La, also called Muktinath Pass, rises to roughly 3,760 metres and links the Muktinath side of the Kali Gandaki with the road basin around Lo Manthang. The trail can hold snow well into spring, and even an October crossing may involve ice. It should be completed in the morning. The pass is not the Tibet border, and a successful crossing does not place a traveller in China.

The old road north through Lho and Sharughku connected Mustang with Tibet and remains a trade route for local communities. Salt, grain, wool, yak products and livestock have moved across the frontier for generations. Yaks and sheep still form part of the local economy. The border area is controlled, however, and foreign visitors cannot cross into the Tibet Autonomous Region of China simply by continuing along the road. Chinese visas and specific border permission are required, and the route is normally closed to ordinary trekkers.

The distinction matters because several trekking descriptions make the old trade road sound like an open cross-border route. It is not. Stay on the permitted side, follow your guide and do not walk beyond a checkpoint to obtain a better photograph. International border access is a separate administrative process, not part of the standard Upper Mustang permit.

Losar, Narchyu and the October literature festival

Losar is Tibetan New Year and the busiest family celebration in Mustang. It normally falls in February or March, although the date changes with the Tibetan calendar. Houses are cleaned, new robes are made, butter lamps are lit and large butter sculptures are prepared. Public events in Lo Manthang last several days. The religious calendar is followed here, so an English calendar date printed months earlier can become wrong if the local celebration moves.

Narchyu, the spring high festival, usually follows in March or April and runs for about five days. It includes processions, large drums, masked cham dances and the arrival of sacred images at Lo Manthang. The central square becomes crowded from early morning until the performances finish. This is a serious local event, not a show staged for visitors. A guide can explain the sequence, but pushing through barriers or treating the masked dancers as photo props is poor behaviour.

The Mustang Literature Festival is held in October. It is a small, multi-day programme of readings, poetry, panel discussions and talks on local history, with sessions in Nepali, English and local languages. Some readings and film screenings draw people from Kathmandu, Pokhara and overseas. The event remains modest in scale, so the atmosphere is closer to a series of talks than a large book fair. Festival dates and venues should be confirmed each year with the festival or your agency.

Festival travel requires more planning. For Losar, Narchyu or the October event, reserve guesthouses and road seats three to six months ahead where possible. Roads and flights are busier, and Lo Manthang has limited bed space. If quiet walking and cave time matter more, choose September or late November instead. Anyone arriving for a festival should still build one spare day, since a delayed jeep or cancelled flight can push the entire programme.

The jeep road and the monsoon problem

The usual arrival is a flight to Jomsom followed by a shared jeep up the road. The drive to Lo Manthang is described as four hours, but five or six is more realistic when counting the permit stops, bad sections of road and a meal break. Seats commonly cost about US$15 to US$25, while a private jeep is roughly US$100 to US$150. Jeeps leave when full rather than to a fixed timetable, so do not build a connection in Jomsom on the same afternoon as your flight.

The road is broken tarmac in many places, with dust, engine trouble and long waits behind freight vehicles. It makes the return to Jomsom much easier, but it does not remove the need to walk locally. Muktinath, Choekhor Choekhor, Tangbe, Lar and Gyakar still require hours or days on foot. Travellers who choose the road for comfort should not expect to cover the standard circuit in three days.

From June to August, the lower Kali Gandaki gorge can become impassable after heavy rain. Landslides, washouts and swollen streams close sections of the road around Beni, Bagarchhap and Jomsom, sometimes for days at a time. Upper Mustang lies in a rain shadow and may stay dry while the access route is cut. That geographic advantage does not help if the jeep cannot climb out of the gorge or the flight from Pokhara is cancelled.

Monsoon road conditions are uncertain, and published closure advice is often late. Never book a non-refundable international flight on the same day as a planned Jomsom connection. A sensible trekking itinerary in July or August needs at least two or three buffer days and should be prepared to move between Jomsom, Muktinath and Upper Mustang on foot if vehicles cannot pass. May and November can also bring storms, so check conditions rather than treating those as guaranteed dry months.

How long to allow for the circuit

Allow 10 to 12 days for the standard Upper and Lower Mustang circuit, including the short walk from Jomsom, local visits around Lo Manthang and a buffer for road delays. A fit walker can complete the main route in eight days, but there is little room for bad weather, a missed permit or a slow day. The advertised 8 to 12 days is a range, not a promise that every section will take the same number of hours.

A common sequence uses Jomsom to Chhuksang on day one, Chhuksang and Kagbeni to Muktinath on day two, and Muktinath to Lo Manthang on day three. Day four is spent in Lo Manthang, with another for Choekhor Choekhor if needed. The route then continues to Ghiling, the Thorong La area and Muktinath before returning through Chhuksang or Jomsom. Walking days range from roughly four hours to eight, depending on the order of the pass and the stop.

Add four days for Gyakar and another four for Lar. Doing both, or doing one with a slow schedule, turns the journey into a 16 to 20 day trek. Do not compress a cave extension to save a few days in Kathmandu. The walking becomes longer, the wind gets less manageable and the schedule has no recovery margin if a pass is blocked by snow.

What the trip costs

The fixed major cost is the US$500 seven-day Upper Mustang permit. A licensed guide commonly costs US$25 to US$35 per trekking day. Family-guesthouse rooms in Lo Manthang are usually about US$10 to US$20 for a private room with a shared bathroom, while three meals add roughly US$20 to US$35 per day. A shared jeep seat from Jomsom generally falls between US$15 and US$25.

A porter costs roughly US$15 to US$20 per day, excluding meals, although rates vary with group size and load. Tips of US$40 to US$100 for a guide and porter over a longer trek are reasonable when service has been good. Drinks, charging, showers, festival accommodation and personal expenses are extra. The US$50 Lower Mustang permit may also be added if the route requires it.

A realistic all-inclusive ground cost for 10 to 12 days is US$900 to US$1,400, excluding international flights and personal shopping. Some agencies advertise lower totals, but ask exactly what is included. A quote close to the permit price alone cannot include a guide, accommodation, meals and transport without leaving costs elsewhere. Obtain a written breakdown and confirm whether the quoted seven-day permit covers the full walking itinerary.

Carry cash in Nepalese rupees. Card payments and ATM services outside Jomsom and Pokhara are unreliable, and an ATM may be empty. Small teahouses take cash for tea, meals, showers and phone charging. International flight prices vary too much to give a useful figure, but the Pokhara to Jomsom sector is short and often affected by weather. Buy travel insurance that covers trekking above 3,500 metres and helicopter evacuation, because the nearest full medical service is far away.

When to go

The best season is March to May and September to November. March, April and May offer the clearest mountain views and the most reliable trail surfaces, although nights in Lo Manthang can fall below freezing. September and October are good for walking, with a greater chance of late-season rain than in March. November is usually clear but increasingly cold. The October literature festival and the spring festivals are the busiest reasons to travel at these times.

June to August is the least reliable period for access because the lower gorge road is vulnerable to monsoon damage. The weather inside Upper Mustang can remain dry, but a closed road affects everything. December to February is not a normal trekking season. Thorong La can be deeply covered in snow, guesthouse services may close, and nights in the upper villages can drop below minus 15 degrees Celsius. Only experienced winter parties should consider that period.

Altitude is a planning factor even during the good seasons. Lo Manthang sits at 3,840 metres and Muktinath at about 3,760 metres. Headaches, poor sleep and reduced appetite are common in the first two days. Avoid alcohol and heavy exercise on arrival. If someone develops a severe headache, cannot walk straight, becomes confused or struggles to breathe at rest, the correct response is to descend and obtain medical help rather than continue for the sake of the itinerary.

How to reach Jomsom and the Upper Mustang road

Most people fly from Kathmandu to Pokhara and then take a second flight to Jomsom. The Pokhara flight takes about 15 to 25 minutes, with the first sector usually lasting 25 to 40 minutes. From Jomsom, the road journey north to Lo Manthang takes about four hours by jeep. It is sensible to arrive in Jomsom one day before the trek begins and to leave at least one day between the last walking day and an onward flight.

A land route from Pokhara through Beni and the Kali Gandaki gorge is possible when the road is open. The bus or jeep ride to Jomsom takes roughly four to six hours, but landslides can make it much longer or stop it completely. The old trail is another option, but it uses valuable days from the Mustang circuit. If the trek is short, the road and flight save enough time to be worth the cost and the risk of a delay.

Jomsom airport is small, and delays caused by wind are common. Do not schedule a Pokhara connection only minutes after the scheduled Jomsom landing, and do not put a Trevi or international flight on the same day as the jeep from Jomsom. In monsoon season, both flights and the road can fail on the same day. A night in Jomsom is cheap compared with missing an international departure.

Where to stay and what to eat

Lo Manthang has family guesthouses such as Hotel Royal Mustang and Hotel Grand Shambala, along with smaller houses around the walled lanes. They are the practical base for most Upper Mustang itineraries because the town is within walking distance of the palace, Choekhor Choekhor and the start of the walk to Ghiling. Muktinath has a limited number of lodges, Jomsom has more hotels, and Chhuksang and Ekal mainly have simple lodges or tented camps.

A Lo Manthang room normally has a bed, thin blankets and sometimes a heater for a few hours in the evening, but it should not be treated as a heated hotel. Bathrooms are shared, hot water may cost extra and electricity can run only during set hours. During Losar, Narchyu and the literature festival, reserve well ahead. Outside those periods, a walk-in room is usually available in Jomsom but not always in Lo Manthang.

The standard meal is dal bhat, usually served with vegetables and sometimes meat. Thukpa, momos, noodles, fried potatoes and Tibetan bread are common alternatives. A guesthouse may include breakfast in the room rate, but dinner is often ordered in the evening for the following day. Tea costs roughly US$1 to US$2, and a bottle of drinking water generally costs US$1 to US$3. Do not drink untreated tap or spring water, even where the local water looks clear.

Toilets may be squat or Western, and paper is not always provided. Carry tissues, hand sanitiser and a small towel. Ncell coverage is patchy in Upper Mustang, while NTC is more dependable around larger settlements but not always at the pass. Downloading offline maps before leaving Jomsom is sensible. Mobile data is not a reliable means of contacting an agency from a cave camp.

What to avoid and a warning worth reading

Upper and Lower Mustang, Nepal

Do not set off for Upper Mustang without the agency-issued permit and a licensed guide, do not treat the Chinese border as a walkable extension, and do not cross an exposed pass in the afternoon. Avoid the monsoon road unless the itinerary has a genuine buffer. Do not assume a Jomsom flight will keep its schedule, and do not leave the permit in a hotel safe while taking the original passport onto the trail.

The day is planned around the wind, not around you. Walk early, stop at eleven, and do not put an exposed pass or ridge crossing in the afternoon just because the morning was clear.

Also avoid bringing more luggage than you can manage yourself. A porter is useful for food, tents and group equipment, but everyone should still carry water, a wind layer, gloves, sun protection, a headlamp and basic first aid. The sun at 3,800 metres burns exposed skin quickly, while shaded ground can freeze. Keep plastic, wrappers and sanitary waste with you until you reach a place that can deal with them. The region has no easy rubbish collection along the cave routes.

A workable plan is to submit the permit at least ten days ahead, allow 10 to 12 days in Mustang, reach Jomsom the night before the trek and keep one spare day before an onward flight. Stay in a family guesthouse in Lo Manthang, walk in the morning and treat the jeep as transport rather than the trip itself. The roads and schedules are useful, but wind, checkpoints and the permit determine how the journey actually works.