Experience the Last Forbidden Kingdom of Nepal

Upper Mustang is one of the most culturally extraordinary treks on Earth-a journey into the ancient walled city of Lo Manthang, perched at 3,820m in the rain shadow of the Annapurna and Dhaulagiri massifs. Often referred to as the forbidden kingdom of Nepal, this remote Upper Mustang region preserves authentic Tibetan Buddhist traditions, medieval architecture, and a way of life that has barely changed since King Ame Pal founded the Kingdom of Lo in 1380. The area is restricted and requires a special permit and a licensed guide. However, no mandatory minimum of two trekkers; a solo trekker can also do a trek there. The trail remains uncrowded and deeply authentic-unlike anything you'll encounter on the Annapurna Circuit or Everest Base Camp trek.

Tip: the aware of altitude sickness - make sure you acclimatize properly and stay hydrated. With Himalayan Exploration Treks, you're in safe hands.

Why You'll Love This Trek

• Ancient Forbidden Kingdom - The Lo mangthang is the capital of the Upper Mustang. You will wander through the narrow alleys of the last walled city, where mud-brick walls were built in the 14th century. The surrounding community is still practicing the Sakya sect of Tibetan Buddhism.
• Monsoon-Season Trekking - The monsoon season runs from June ot August. However, the Upper Mustang is markedly different from other major Nepal treks because it lies in the rain shadow and receives less rainfall, with approximately 200-250 mm of annual precipitation.
• The Deepest Gorge and Sacred Fossils - The Kali Gandaki River makes the world's deepest gorge, which you traverse on the route. The Kali Gandaki River, itself considered sacred in Hinduism, where ancient shaligram fossils are embedded in riverbed stones.
• Tiji Festival Experience - Time your visit for mid-May to witness the Tiji Festival, a three-day celebration in Lo mangthang. The Tiji Festival features the step-by-step masked dances that present the warfare arts.
• Sky Caves and Ancient Monasteries - The Upper Mustang is popular for sky caves and ancient monasteries dating back 2000 to 3000 years. The human-made sky cave near Chhoser village is one of the most remarkable archaeological sites for those keen to discover ancient caves and bewitching vistas. The monasteries such as Ghar Gompa, Thubchen Gompa, and Namgyal Gompa stand as centuries-old monuments to a once-independent kingdom.

What Makes Upper Mustang Different

Most Nepal treks traverse from lush green valleys to the lesser-known high Himalayan valley. There's no single best trek; each has spectacular scenery and standard tea houses. But Upper Mustang Treks is totally different.

Restricted Access: To enter the restricted area, you will need to obtain a special permit costing $50 per day and 3000 rupees for ACAP. You will get all of these through the registered trekking companies.

Tibetan Culture in Nepal – No need to cross an international border; you will experience authentic Tibetan culture. You will pass through traditional villages, Buddhist monasteries, long mani walls, and prayer flags. The locals, called Loba, maintain their own dialect, dress, and customs that directly connect to Tibet, with sites linked to Guru Rinpoche.

Year-Round Trekking – The climate in Upper Mustang is dry and windy, characteristic of high-altitude deserts. While fierce wind can sweep the plateaus in the afternoon, the rain shadow geography means this is the only major Mustang trek feasible during monsoon months-a genuine advantage for trekkers with limited scheduling flexibility for choosing the best time for an Upper Mustang trek.

Historical Significance – Upper Mustang was a kingdom founded in 1380, and you'll walk the same ancient salt-trading route that connected Tibetan Plateau traders to lowland India through the Kali Gandaki corridor for centuries—every village along the trail-from Kagbeni to Tsarang to Lo Manthang-tells a chapter of that story.

Trek Details

Duration and Itinerary

• Duration: The trek typically lasts 12 to 18 days, with 12–15 days being the most popular trek itinerary

Altitude and Difficulty

• Maximum Altitude: 4350m at Pa Pass (the highest point on the Upper Mustang trek)if combining the eastern route.
• Difficulty Level: Moderate, with no previous trekking experience or technical climbing required-daily hikes of 5 to 7 hours over passes and hills, as outlined in many Upper Mustang trekking guides

Best Seasons

• Best Seasons: Upper Mustang trekking season extends from March to November: Spring (March to May) features blooming wildflowers and the Tiji Festival in mid-May. Autumn (September to November) offers clear skies and stunning views. Winter months are harsh and not recommended for trekking.

There are 5 hiking trails in Upper Mustang, from 7 days to 18 days. We design them based on the duration and difficulty. All of them allow you to explore in depth the most important cultural and natural sites.

Optional extensions: Saribung Pass or Teri-La Pass for highly experienced trekkers.

Trekking Routes

• Trekking Routes: Upper Mustang has three main trekking routes: Classic, Western, and Eastern. The Classic Route follows the road with some off-road detours; the Eastern Route is a challenging 3-day off-road trek, all of which feature in some of the best Upper Mustang trek itineraries.

Permits and Costs

• Group Size: 1-14 people (small groups can fully enjoy the trek).
• Permits Required: Restricted Area Permit ($50 USD per day), ACAP permit, and TIMS card-total permit fees approximately $550
• Total Trek Cost: Upper Mustang Trek costs range from 2,250 to 4,400 USD per person, depending on group size and service level. These figures align with the detailed cost breakdowns for the Upper Mustang trek. Guide costs range from 25 to 50 USD per day.

Accommodation and Food

• Accommodation: In Upper Mustang, accommodations are typically basic tea houses. Accommodation is often in traditional Mustang homes. Rooms usually have two single beds and a small table. Shared bathrooms are common in guesthouses. Showers may be available but often depend on solar heating. Accommodation costs range from 1500 NPR to 8500 NPR per night.
• Food Costs: Approximately 3,000 NPR per day, with prices increasing the further you walk from Kagbeni.

Getting to Upper Mustang

• By Air: Kathmandu to Pokhara (25 minutes), and Pokhara to Jomsom (another 20-minute flight).
• By Land: Kathmandu to Jomsom (14 to 18 hours) and Bus from Pokhara to Jomsom (7 to 8 hours).

The trek officially starts at Kagbeni, where you'll need to show your permit.

Who This Trek Is For

• Cultural enthusiasts seeking authentic Tibetan Buddhist experiences and preserved monastic heritage
• Experienced trekkers looking for unique, off-the-beaten-path adventures beyond the standard Annapurna Circuit or passes trek routes
• Photographers drawn to desert landscapes, ancient architecture, and the dramatic contrast between red-rock canyons and snow-capped mountains.
• Travelers who want to trek during Nepal's monsoon season when other trails are impassable
• Adventure seekers with good fitness levels who can handle 5–7 hours of daily walking at altitude, carrying a daypack across exposed ridgelines

If you want a journey that combines deep cultural immersion with spectacular scenery found nowhere else in Nepal, this trek is for you. Prior high-altitude trekking experience is helpful but not mandatory. Proper acclimatization and planning make this route accessible to fit, motivated hikers.

Ready for Your Forbidden Kingdom Adventure?

Upper Mustang is not a trek you stumble into-it's one you plan, commit to, and remember for life. With restricted access and mandatory permits, securing your spot in advance is essential, especially if you're planning to visit the Tiji Festival or the peak of the autumn season. Book at least 4 to 6 months ahead for the best availability.

Himalayan Exploration Treks handles every detail of your forbidden kingdom journey-from Restricted Area Permit processing and ACAP/TIMS documentation to experienced licensed guides, logistics, accommodation arrangements, and safety protocols for altitude management. Our guides know the Upper Mustang region intimately, from the best Upper Mustang trek map routes to the most significant monasteries and cave sites.