Upper Mustang Trek

Upper Mustang is classified as moderate difficulty. You need a reasonable base fitness level — walking 5 to 6 hours a day with a daypack for 12 consecutive days. Unlike Annapurna Base Camp or the Three Passes trek, there are no long, steep climbs. The terrain is mostly plateau walking and valley trails. The primary challenge is altitude: you spend 6 nights above 3,500 m. If you exercise 3 to 4 times per week (running, cycling, hiking), you'll be comfortable. No technical climbing skills are needed.

It's a reasonable first high-altitude trek for moderately fit people, provided you allow proper acclimatisation time. The itinerary includes a rest day in Lo Manthang (Day 7) and the daily elevation gain is gradual. The maximum altitude (Nyi La, 4,010 m) is lower than Everest Base Camp (5,364 m) or Thorong La (5,416 m). The main risk is ascending from 2,720 m (Jomsom) to 3,840 m (Lo Manthang) within 6 days — follow the 'pole pole' principle (go slowly), drink 3 to 4 litres of water per day, and tell your guide immediately if you develop headache, nausea, or unusual fatigue.

The risk is moderate — lower than EBC or the Three Passes, higher than Poon Hill or Mardi Himal. You'll sleep at 3,840 m for 3 nights in Lo Manthang. Acute Mountain Sickness (AMS) symptoms — headache, fatigue, loss of appetite, poor sleep — are possible. Severe AMS (HACE or HAPE) is rare at this altitude but not unknown. We always carry a pulse oximeter to monitor blood oxygen levels. If your SpO2 drops below 75% or you show severe symptoms, the protocol is descent to Kagbeni (2,810 m) — a half-day walk or emergency jeep ride. Acetazolamide (Diamox) at 125 mg twice daily from Day 1 is a common preventive measure and is available in Pokhara pharmacies.

Tap water and stream water in Upper Mustang are not safe to drink without treatment. All lodges provide boiled water or you can buy bottled water (cost: NPR 100–200 per litre, more expensive at higher villages). Bring a SteriPen or water purification tablets as a backup and cost-saving measure — you'll drink 3 to 4 litres per day. Avoid ice in drinks. Hot tea and coffee are safe. The altitude causes rapid dehydration even when you don't feel thirsty — monitor your urine colour (should be pale yellow, not dark).

The Upper Mustang Restricted Area Permit (URAI) is a government-issued permit required for all foreign nationals trekking north of Kagbeni. It costs USD 500 per person for the first 10 days and USD 50 per additional day. This was set by the Nepal government when the Kingdom of Lo was opened to foreign visitors in 1992. The permit is issued in Kathmandu through a government permit office and must be arranged before you enter the restricted zone — it cannot be obtained in Mustang itself. Additionally, all trekkers need the Annapurna Conservation Area Permit (ACAP) at NPR 3,000. Both permits are included in our package price. You must carry copies during the trek — there are multiple checkpoint posts on the trail.

No. Independent trekking in Upper Mustang is illegal under Nepal government regulations. All trekkers in the restricted zone must travel with a government-licensed guide and permits must list the guide's registration number. There are checkpoint posts at Kagbeni, Chele, Lo Manthang, and on the return route that verify this. Attempting to enter without a guide results in permit cancellation and possible removal from the zone. Our guides are all licensed and most are from Mustang itself — they provide context about monastery history, local customs, and Tibetan Buddhist practice that you can't get from a guidebook.

March to November. The critical difference from other Nepal treks: Upper Mustang is viable in June, July, and August. The Himalayan barrier blocks monsoon moisture, and precipitation in Lo Manthang during July averages just 28 mm. When the Annapurna Circuit, EBC, and Manaslu routes close to most trekkers due to rain, Mustang stays dry. October and November are optimal — clear skies, no wind issues in the mornings, and temperatures between -1°C and 17°C at Lo Manthang. March and April are beautiful with wildflowers on the lower trail. Avoid December, January, and February — temperatures drop below -15°C at night and the route becomes genuinely harsh.

You need two flights: Pokhara → Jomsom (outbound) and Jomsom → Pokhara (return). Tara Air and Summit Air both operate this route in Twin Otter propeller aircraft. The flight takes 20–25 minutes and costs approximately USD 120–140 one way. Flights operate only in the early morning (06:00–09:00) before afternoon winds. Cancellations due to cloud or wind are common — roughly 30% of Jomsom flights are delayed or cancelled on any given day. We always build a 1-day buffer into our itinerary at the Pokhara end. If you have a tight international flight connection, allow 2 buffer days in Pokhara before your international departure. In the event of repeated cancellations, the overland alternative is a jeep from Pokhara to Jomsom via Beni (8–10 hours on a rough road).

Upper Mustang is considered safe for women trekkers. The mandatory guide requirement means you always travel with a local, removing the common vulnerability of solitary trail walking. The local Mustangi population — largely Tibetan Buddhist — has a cultural tradition of women in prominent social and economic roles. Harassment is rare and the communities are used to international visitors. Women trekkers have rated Upper Mustang consistently high for comfort and safety in group and independent feedback. We've run many departures with all-women groups and solo women joining mixed groups.

The food in Upper Mustang is a mix of Nepali teahouse standards and Tibetan-influenced dishes that you won't find on other Nepal trek routes. In Lo Manthang, lodges serve Mustangi specialties: buckwheat pancakes (dhero), tsampa (roasted barley flour porridge), thukpa (Tibetan noodle soup), yak butter tea (doja — an acquired taste), and locally produced apples and dried apricots. Dal bhat (lentil soup with rice), noodles, and vegetable fried rice are available everywhere. Meat (yak, chicken) is available but quality varies — stick to vegetarian options in the smaller villages. The apples from Marpha (a village between Jomsom and Kagbeni) are famous across Nepal and available from October. Breakfast and dinner are included in your package.

Three specific risks in Upper Mustang: (1) Altitude — gradual ascent profile keeps HAPE/HACE risk low, but monitor SpO2 and symptoms daily. We carry a pulse oximeter. (2) Afternoon winds — the Kali Gandaki valley funnels 40–60 km/h wind from south to north from about 11:00. Plan to finish each day's walking by noon. A trekker knocked over by wind in exposed terrain can be injured. (3) Flight delays — Jomsom airport is frequently affected. This is an inconvenience issue, not a safety issue, but it requires flexible international connections. There is no road ambulance access above Kagbeni. In a serious medical emergency, helicopter evacuation is required and costs USD 2,000–5,000 — this is why travel insurance with emergency evacuation cover is mandatory.

Below Kagbeni, jeep evacuation to Pokhara is possible on a rough road (8–10 hours). Above Kagbeni in the restricted zone, the only fast evacuation is helicopter. Nepal's rescue helicopters operate out of Pokhara and Kathmandu and can reach Lo Manthang in under 2 hours in good weather. Our guides carry a satellite communicator for emergency use where mobile coverage fails. We require all trekkers to purchase travel insurance with a minimum USD 100,000 emergency medical evacuation cover before departure — you must provide your policy details when booking. A good contact for helicopter rescue coordination is Himalayan Rescue Association Nepal (himalayan-rescue.org).

Travel insurance covering emergency medical evacuation to USD 100,000 minimum and high-altitude trekking up to 5,000 m is required for booking. Check that your policy explicitly covers helicopter rescue — some standard travel policies exclude this. Reputable providers used frequently by Nepal trekkers include World Nomads, Safety Wing, and Battleface. Send your policy number and insurer contact to us before the trek departure day. In an emergency, we call your insurer directly to arrange helicopter billing where possible, avoiding out-of-pocket payment.