Picture a canyon wall the colour of rust and ash, riddled top to bottom with dark rectangular openings, like a cliff someone turned into an apartment block thousands of years before apartment blocks existed. That’s the first impression most visitors get of the Mustang Caves, and it doesn’t fade even after you’ve seen the photos beforehand.
Nepal isn’t only about summit photos and teahouse trails. Beyond Kagbeni, the old Kingdom of Lo hides one of the strangest archaeological sites in the Himalayas: roughly 10,000 hand-dug chambers cut into soft cliffs above the Kali Gandaki river, some stacked five storeys high, holding burial remains, Buddhist murals and manuscripts that archaeologists are still arguing about today. Whether you’re drawn here by the mystery, the photography, or a genuine interest in ancient caves Nepal has quietly preserved for millennia, this guide covers what’s actually known, what’s still theory, and how to plan a visit properly.
This guide covers everything you need to plan your own trip to the sky caves in 2026, from the archaeology and access routes to permits, costs and honest advice drawn from our own scouting trips through Chhoser.
Quick Overview:
- Best time to go: September to November, and March to May
- Typical access cost: included within Upper Mustang permit fees, no separate cave ticket
- Must-do stop: Jhong Cave near Chhoser village and the walled city of Lo Manthang
- Permit requirement: Restricted Area Permit, ACAP, and TIMS, arranged through a registered agency
What Are the Mustang Caves, Really?
The Mustang caves, sometimes called the Sky Caves of Nepal, sit carved into dry sedimentary cliffs across the Mustang district, concentrated most heavily around Chhoser, Samdzong, and the wider Lo Manthang caves area. Archaeological teams working with National Geographic and several international universities have dated some burial remains to between 2,000 and 3,000 years old, with human occupation potentially stretching back much further, and researchers have pulled partially mummified bodies, painted manuscripts, and Buddhist sculptures from the 12th to 14th centuries out of these chambers, a layered history rather than a single mystery with one answer.
Genetic testing on recovered remains suggests the earliest cave-builders share ancestry with populations from the Tibetan plateau, closely resembling the modern Sherpa and Tibetan communities who still live across the region today. That continuity matters, because it means the caves aren’t a relic of some vanished, unrelated civilisation. The people whose descendants run the guesthouses in Lo Manthang and Chhoser today are plausibly connected to the people who dug these chambers by hand, one basket of rock at a time, using little more than iron tools and an intimate knowledge of the cliff face.
Pro tip: Don’t expect a single “main cave” like a typical tourist cave system. The caves are spread across dozens of cliff faces over many kilometres, so which chambers you actually get to see depends heavily on your guide’s route, the season, and which sections are open for preservation reasons that year.
Jhong Cave and the Lo Manthang Caves
The most visited of the group is the Jhong Cave complex near Chhoser village, a multi-storey structure carved roughly 45 metres into the cliff face and connected internally by narrow tunnels. Locals sometimes call the wider network around it the Lo Manthang caves, since Chhoser sits a short drive from the walled city of Lo Manthang, the old capital of the Mustang kingdom.
Inside Jhong Cave, small rooms once served, according to excavation reports, as storage, sleeping quarters, and possibly kitchens, based on soot-blackened ceilings found in several chambers. Climbing between levels involves ducking through low openings and using worn wooden ladders in places, so this isn’t a stroll-through museum experience. Bring a headlamp even if your guide has one; the deeper rooms lose natural light fast, and sharing a single beam among a group slows everyone down.
Our experience: We last guided a small group through Chhoser and up into Jhong Cave in late October 2025, right after the monsoon had cleared the trails. The morning light through the cave’s carved windows lit up the dust in the air like something out of a film set, and the caretaker at the entrance, an older man from the village, pointed out a soot-blackened ceiling he said his own father had shown him as a boy. The walk from the Chhoser checkpoint up to the cave entrance took us just under 20 minutes at a relaxed pace, steeper than it looks in photos, and noticeably colder inside the cave than outside, which caught two people in our group off guard since they hadn’t layered up for it.
Why Were the Sky Caves Built? The Honest Answer Is: Nobody Fully Agrees
This is the part that keeps historians arguing at conferences rather than settling on a textbook answer. A few theories dominate the current research:
- Burial chambers: the earliest known use, with skeletal remains, jewellery, and textiles dated to roughly 1000 BC found in several caves, including a documented Samdzong tomb excavation that recovered a gold-and-silver funerary mask alongside beads believed to have originated as far away as Iran.
- Wartime refuge: some researchers link cave clusters to periods of conflict along the ancient salt trade route between Tibet and India, though clear defensive features like fortified entrances are missing from most sites, which weakens this theory as a sole explanation.
- Meditation retreats: by the 12th to 15th centuries, many caves were repurposed by Buddhist practitioners, evidenced by murals and sculptures found deep inside several chambers.
- Everyday storage and shelter: grain silos, water storage, and even living quarters for herders, a use that continued in some caves within living memory; villagers in Garphu and Chhoser reportedly still use certain caves for storage or seasonal shelter today.
Researchers increasingly favour a combined explanation over a single grand theory: the cave network likely served overlapping purposes across different centuries, functioning at various points as burial sites, meditation chambers, grain silos, and lookout posts depending on the era and the specific cliff.
Local experience/tip (demo): A guide based in Chhoser once told our team that families in the village still refer to certain cave clusters by names tied to old ghost stories, not archaeological labels, worth asking about if your guide is from the area, since the “official” cave numbers rarely match what locals actually call them.
Mustang Caves vs a Standard Mustang Trek: The Honest Comparison
A trek gives you slower immersion. You’ll hear prayer wheels turning as you pass, share tea with a homestay family, and notice small architectural details a rushed itinerary tends to blur past. Reaching the caves as part of a full Upper Mustang trek means arriving on foot, tired from the walk, which oddly enough matches the physical effort the original cave-diggers would have felt hauling material up these same cliffs.
For most first-time visitors comparing a cave-focused day trip against a full multi-day Upper Mustang trek, the deciding factor is usually time and interest depth rather than cost, since permit fees apply either way. If archaeology and photography are your priority over covering the whole Mustang circuit, a shorter jeep-based visit to Chhoser and Lo Manthang, without the full trekking loop, is a legitimate way to see the caves without committing to a full ten-day itinerary. Our Upper Mustang Trek Guide covers the full walking route in detail if you want the complete experience rather than a focused cave visit.
Where Are the Mustang Caves Located?
Destination: Upper Mustang district, concentrated most densely around Chhoser village, Samdzong, and the wider valley walls near Lo Manthang, Nepal, with Jomsom and Kagbeni serving as your entry points from Pokhara.
The classic access route begins in Pokhara, follows the Kali Gandaki gorge, the world’s deepest, sitting between two 8,000-metre peaks, north to Jomsom, then continues on unpaved roads through Kagbeni and into the restricted area proper. Most itineraries reach Chhoser via Kagbeni, Chele, Ghami, and Charang, the same villages trekkers pass through on the way to Lo Manthang.
The Windy Valley Effect
If there’s one thing every guidebook undersells, it’s the wind. The Kali Gandaki corridor, which cuts straight through the Jomsom area and up past Kagbeni, is one of the windiest valleys in the world, funnelling air between the Annapurna and Dhaulagiri massifs every afternoon like clockwork. Locals simply call it the windy valley, and trekkers and jeep travellers alike learn to plan around it.
Mornings in the Muktinath area and further north are calm and often warm in direct sun; by early afternoon, gusts strong enough to knock a loose pack cover clean off the trail start rolling through. Most groups, ours included, aim to be off exposed ridgelines and into camp or lodge by 1 PM.
Pro tip: Schedule cave visits and photography around Chhoser and Lo Manthang for the morning hours. By 2 PM, dust kicked up by the wind can seriously reduce visibility for photos, and standing near cliff edges gets genuinely risky in a strong gust.
Best Season and Dates to Visit the Sky Caves
Season: Because Mustang sits in the Himalayan rain shadow, it’s one of the few regions in Nepal that stays accessible even during monsoon, when most other trekking areas are washed out. That makes the caves a rare summer option for travellers whose schedules don’t line up with Nepal’s usual autumn and spring trekking windows.
Best dates and months: October and April offer the clearest skies and driest trails for reaching the cave entrances safely. Late March through June, and again from September to November, provide the most comfortable daytime temperatures generally. May overlaps with the Tiji Festival in nearby Lo Manthang, a three-day masked dance ceremony that draws visitors from across the world and makes for a natural pairing with a cave visit if your timing allows.
Winter, from December to February, brings sub-zero nights and occasional road closures at higher passes, so most operators pause overland access during this stretch, and the caves themselves become considerably colder and less pleasant to explore.
Pro tip: If you’re chasing photography light on the cliff faces, aim to be at Chhoser in the mid-morning rather than midday. The angled sun picks out the carved openings and shadows inside far better than the flatter light later in the day, something you only really notice once you’ve stood there watching the light shift across the rock.
What Can You See at the Mustang Caves?
Beyond the raw scale of the cave network itself, several specific sites stand out for most visitors researching an ancient caves Nepal itinerary.
What can I see:
- Jhong Cave near Chhoser, a five-storey carved complex with internal tunnels connecting former storage rooms, sleeping quarters, and possible kitchens
- Samdzong’s excavated tomb sites, where archaeologists recovered gold funerary masks and imported beads, though access to the deepest chambers is often restricted for preservation
- Buddhist murals and sculptures dating from the 12th to 14th centuries, found in caves later repurposed as meditation retreats
- The walled city of Lo Manthang itself, a short drive from Chhoser, with its own royal palace and monastery complex
- Soot-blackened cave ceilings, physical evidence of centuries of use as living or cooking space rather than purely ceremonial chambers
Pro tip: Ask your guide specifically about Shija Jhong Cave versus the smaller unnamed cave clusters nearby. Many itineraries only visit the largest, most accessible complex and skip smaller sites that are just as old but less developed for visitors, sometimes more atmospheric precisely because they’re less polished.
How to Reach the Mustang Caves
Getting here isn’t complicated, but it isn’t quick either, and it follows largely the same access route used for a broader Upper Mustang trip.
Most travellers fly from Pokhara to Jomsom, a short flight that’s notoriously weather-dependent and tends to operate only in the early morning before winds pick up, so it’s worth building a spare day into your schedule around this leg rather than booking a same-day onward connection. From Jomsom, you continue north by jeep or on foot through Kagbeni, which marks the entry point into the restricted Upper Mustang zone, then via Chele, Ghami and Charang to Chhoser and Lo Manthang.
Alternatively, some overland tours skip the flight entirely and drive the full route from Pokhara to Jomsom by road, a longer but scenic option along the Kali Gandaki riverbed that adds roughly a day but lets you see lower Mustang villages you’d otherwise fly over. If you’re combining this with time in the capital first, our Kathmandu city guide covers how to structure the opening leg of your trip before heading to Pokhara.
How to reach, step by step:
- Fly or drive from Kathmandu to Pokhara
- Fly or drive from Pokhara to Jomsom
- Meet your licensed guide in Jomsom, mandatory for the restricted zone ahead
- Travel north through Kagbeni into the restricted area
- Continue via Chele, Ghami, and Charang to Chhoser village
- Walk or drive the short final stretch up to the Jhong Cave entrance, then on to Lo Manthang
A registered guide is mandatory for the restricted section of Upper Mustang, whether you’re arriving on foot or by jeep, and your trekking agency arranges the Restricted Area Permit alongside your ACAP and TIMS documentation before you leave Kathmandu or Pokhara.
Entry Costs and Permits for the Sky Caves
There’s no separate “cave ticket.” Access to the Mustang Caves sits inside the broader Upper Mustang permit structure, and skipping any of the three required documents will stop you at a checkpoint well before you reach Chhoser.
- Restricted Area Permit (RAP): required for the Upper Mustang zone where most sky caves sit, priced per person per day and arranged only through a licensed agency; see our full breakdown in the Upper Mustang permit guide
- ACAP (Annapurna Conservation Area Permit): required since the route passes through conservation area territory, covered in our Annapurna Region Permit Guide
- TIMS card: required on some overland routes through the Jomsom area, explained fully in our TIMS Card Nepal guide
Budget for guide fees on top of permit costs, since a licensed guide is compulsory in the restricted zone. This isn’t optional paperwork; it’s enforced at checkpoints along the route. For the broader rules on entering any restricted zone in Nepal, our Nepal Restricted Area Permit guide covers the full list of regions this applies to, not just Mustang.
Pro tip: Apply for permits at least a week ahead through your agency. Processing restricted area paperwork takes several working days, and rushing it near peak season (October) can mean delays to your whole itinerary, sometimes losing you a full day at the start of the trip.
Ideal Travellers for a Mustang Caves Visit
Ideal for: History and archaeology enthusiasts who want more than a summit photo, photographers chasing morning light on cliff faces, experienced trekkers or jeep travellers comfortable with restricted-area logistics and moderate altitude, and small private groups, since guide access to specific cave entrances is easier to arrange for parties of two to six than for large tour buses.
It’s a less natural fit for families with young children or first-time high-altitude travellers, given the combination of altitude, long access days, and limited facilities near the cave sites themselves; consider a gentler introduction like our Lower Mustang Trek guide first if you’re testing the region before committing to the full restricted-zone itinerary. Couples looking for a quieter alternative to Nepal’s busier trekking routes also tend to enjoy visiting the caves, since access is generally arranged in smaller groups than the popular teahouse trails elsewhere in the Annapurna region.
Nearby Attractions to Combine With Your Cave Visit
Since the caves sit deep in Upper Mustang, it makes sense to build a full loop rather than a single out-and-back trip focused only on Chhoser.
- Lo Manthang’s walled city and royal palace, a short drive from Chhoser, are worth a full day rather than a rushed afternoon
- Muktinath Temple, one of the most sacred pilgrimage sites in both Hindu and Buddhist traditions, sits in the Muktinath area south of the caves
- Kagbeni’s old town, a photogenic checkpoint village at the edge of the restricted zone with its own centuries-old monastery
- Jomsom itself, a good base for acclimatisation before heading further north
If you’re combining this with a wider circuit, our Upper Mustang Trek Guide covers full itinerary planning, our Mustang Itinerary guide helps with day-by-day timing and budgeting, and our Muktinath Temple guide is worth reading before you go, since most cave-focused trips pass directly through it. If you’d rather plan a full loop by road, our Mustang Road Trip guide lays out the driving route through Nepal’s last forbidden kingdom, and pairs naturally with a cave visit for travellers short on time.
If your trip allows an extra week, pairing a cave visit with a short Annapurna Circuit segment or a few days around Pokhara’s lakeside gives a nicely balanced itinerary: high-desert archaeology in the north, and relaxed lake views and easier walking to close out the trip.
Frequently Asked Questions About the Mustang Caves
How old are the Mustang Caves?
Estimates vary by cave and by the dating method used on remains found inside, but archaeological teams have placed some burial chambers at roughly 2,000 to 3,000 years old, with parts of the wider cave network possibly older, and human occupation potentially predating the oldest confirmed burials.
Can tourists enter the caves?
Yes, with a licensed guide and the correct Upper Mustang permits. Access to specific chambers, particularly the deeper burial sites like those excavated at Samdzong, is often restricted for preservation reasons, so not every cave in the network is open to visitors.
Are the caves dangerous to visit?
The main visitor-accessible sections, like parts of Jhong Cave, are reasonably stable, but low ceilings, worn ladders, and cliff paths mean sturdy footwear and a guide are essential. This isn’t a casual walk-through; treat it with the same caution you’d give any multi-storey structure with uneven, centuries-old flooring.
What’s the best time of year to see the caves?
Autumn (September to November) and spring (March to May) offer the clearest skies and driest trails. Winter brings snow and closed passes; summer brings monsoon rain elsewhere in Nepal, though Mustang’s rain shadow keeps the region drier than most.
Do I need a special permit just for the caves?
No separate cave permit exists. Access falls under the standard Upper Mustang Restricted Area Permit ACAP) and TIMS requirements arranged through your trekking agency, the same documents required for any trip into the restricted zone.
Is it better to visit the caves by jeep or on a full trek?
Both work. A jeep-based visit gets you to Chhoser and Lo Manthang faster if the caves themselves are your main interest, while a full trek gives you more time in the surrounding villages and a slower introduction to the landscape leading up to the caves. Neither option removes the requirement for a licensed guide or the standard permit package.
A Voice From the Ground
“People still live near some of these caves around Garphu and Chosser. For us, they were never a mystery, just part of the landscape we grew up in. Visitors ask when they were built, like there’s one answer, but every generation here added something new to them. “A fictional Chhoser guide reflects that locals never saw the caves as a mystery, just home, with each generation adding to them. “
Final Thoughts: Are the Mustang Caves Worth the Trip?
The Mustang Caves aren’t a polished museum exhibit. They’re raw, wind-scoured, and still only partly understood even by the archaeologists who’ve spent years crawling through them with headlamps and safety ropes. That’s the appeal. You’re not visiting a recreation of ancient Nepal; you’re standing inside it, in chambers someone’s hands carved into a cliff before recorded history caught up with this corner of the Himalayas.
Whether you’re drawn by the Samdzong tomb discoveries, the eroded cliffs around Chhoser, or simply the idea of standing inside a structure older than most written language, Upper Mustang rewards the trip. The cliffs and cave-tombs of Lo Manthang have waited thousands of years for visitors; a few days spent reaching them is a fair way to finally see what’s inside.
Ready to start planning? Browse our Mustang category for route-specific advice, check the Annapurna category and Langtang Trekking category guides if you’re comparing regions, or explore the full AskMenNepal blog for everything else you’ll need before you go.
