The Everest Three Passes trek gets discussed constantly, across trekking forums and agency websites alike, as though it were a single achievement, one long circuit through the Khumbu that links Kongma La, Cho La, and Renjo La into a two and a half to three week loop. What gets talked about far less, especially in short marketing pages built to sell a package rather than to inform a trekker, is that these are three genuinely different mountain passes, each with its own altitude, its own terrain, its own risks, and its own rewards, and treating them as interchangeable steps on the same trail does a real disservice to how much they actually differ from one another in altitude, terrain, and technical demand. This guide breaks down each of the three passes individually, in real detail, so you know exactly what you are walking into at each one, which direction most trekkers cross them in and why, what gear and preparation each one specifically demands, and how to decide whether this route is the right next step after a standard Everest Base Camp trek. By the end, you should have a clear, honest picture of what separates Kongma La from Cho La from Renjo La, rather than a vague sense that they are all roughly similar high passes somewhere in the Khumbu, and you should be able to plan your own crossing with real confidence rather than guesswork.
Why Trekkers Choose the Full Circuit Over a Single Pass
It is worth addressing a question a lot of trekkers ask once they understand how different the three passes actually are from each other: why cross all three rather than picking the one or two that sound most appealing. Part of the answer is simply the completeness of the experience the full circuit offers, linking the main Khumbu valley, the Gokyo valley, and the Thame valley into a single continuous loop that no single pass or shorter combination can replicate. Another part is practical, since the passes are laid out in a way that makes a full circuit only modestly longer than crossing just one or two of them individually, given how much of the route, the walk in from Lukla, the time at Namche, the approach to Everest Base Camp, is shared regardless of how many passes you end up crossing. For most trekkers who have the fitness, time, and acclimatization schedule to attempt any of the three passes at all, completing the full circuit rather than stopping partway through ends up being the more rewarding choice relative to the additional days it actually requires.
Kongma La: The Highest and Hardest of the Three
Kongma La sits at approximately 5,535 to 5,540 meters above sea level, making it the highest of the three passes, and it connects the Chhukung valley on the eastern side to Lobuche on the western side near the main Khumbu valley. Most sources agree this is the hardest pass of the three, though not for technical climbing reasons. There is no glacier crossing and no roped climbing involved, but the western descent toward Lobuche drops through a long, steep chute of loose, sliding scree that tests balance and knees far more than raw fitness. The approach and exit trail is also noticeably fainter and more remote than the other two passes, with no settlements in between and a genuine sense of isolation for the several hours it takes to cross.
Elevation gain on the Chhukung side to reach the pass is roughly 900 meters, the largest single gain among the three passes, and a full crossing from Chhukung to Lobuche commonly takes seven to ten hours depending on conditions and pace. From the top, the views open toward the Lhotse Glacier, with Makalu, Lhotse, and Nuptse visible in the distance, and looking west you can see down toward Lobuche and the edge of the Khumbu Glacier that your descent will eventually cross. Weather can close this pass without warning, and while avalanche risk is lower here than on Cho La, the loose rock and scree on the descent create their own hazard, particularly in wet or freshly snowed conditions when footing becomes unpredictable.
Cho La: The Glacier Crossing
Cho La, sometimes spelled Chola, sits at a remarkably consistent 5,420 meters across almost every source that documents it, making it the most reliably measured of the three passes. It connects Dzongla, at around 4,830 meters on the eastern side, to Thagnak or Dragnag, at around 4,700 meters on the western side, linking directly into the Gokyo valley. What sets Cho La apart from the other two passes is a genuine glacier crossing partway along the route, where trekkers walk across snow and ice that commonly requires microspikes or light crampons for secure footing, even though the glacier surface itself is relatively flat and the crossing is not technically difficult in the way a roped climb would be.
The main hazards on Cho La are rockfall from the surrounding cliffs above the trail and an unstable glacier edge where the ice meets exposed rock, along with a steep descent of roughly 250 meters over half a kilometer on the western side that demands careful footing after the glacier section. The full distance between Dzongla and Dragnag runs close to 9.4 kilometers. Snow covers the pass for roughly nine months of the year, and temperatures at the top regularly sit well below freezing even in relatively mild conditions lower down the valley, so poor visibility is a real reason to delay a crossing rather than push through in marginal weather. From the top, trekkers look toward a small glacial lake and snow covered rock formations, with Ama Dablam visible in the distance, and the approach itself runs alongside the Ngozumpa Glacier below Cho Oyu, giving a preview of the glacier scenery that continues into the Gokyo valley beyond.
Renjo La: The Easiest Pass With the Best Views
Renjo La sits at approximately 5,357 to 5,360 meters, the lowest of the three passes by a modest margin, and it connects the Gokyo Lakes valley on the western side to the Thame valley on the eastern side, on the route toward Namche Bazaar and Lungden. This is consistently rated the easiest of the three passes, with well defined switchbacks, clearer navigation than Kongma La’s fainter trail, and no glacier crossing to manage. Elevation gain to reach the pass runs roughly 700 to 750 meters, noticeably less than Kongma La’s 900 meter climb, and a crossing from Gokyo to Lungden typically takes six to eight hours.
Do not mistake easier for unimportant, since Renjo La is widely considered to offer the single best view on the entire Three Passes route, a genuine 360 degree panorama that includes Everest, Lhotse, Makalu, and Cho Oyu together with the turquoise Gokyo Lakes and the Ngozumpa Glacier spread out below, all without climbing any higher than the pass itself. Photographers and trekkers who have crossed all three passes frequently name Renjo La as their favorite moment of the entire trek specifically because of this view. Despite being the easiest pass technically, Renjo La has a notable reputation for closing first in bad weather, with at least one documented winter account describing Renjo La shutting after a snowstorm while the other two passes remained open on the same trip, so treat its relative ease as no guarantee against a weather closure on the day you plan to cross.
Which Direction to Cross Them, and Why It Matters
Most trekkers, roughly three out of four by most estimates, cross the three passes in a counterclockwise direction, starting with Kongma La, continuing to Cho La, and finishing with Renjo La last before descending toward Namche Bazaar. This particular order is generally the one recommended for acclimatization reasons, since it front loads time spent above 4,000 meters in the Chhukung and Lobuche areas before tackling the technical challenges of Cho La and Renjo La, and it means that even if bad weather closes a later pass, you have already reached Everest Base Camp itself before that happens.
A smaller number of trekkers choose the clockwise direction instead, crossing Renjo La first, then Cho La, then finishing with Kongma La last. This route reaches Gokyo Lakes and the Gokyo Ri viewpoint within the first week, which some photographers prefer for capturing the Gokyo scenery early in better weather odds, but it offers less acclimatization buffer before the first high pass crossing, since you reach Renjo La’s altitude sooner in the itinerary than the counterclockwise route reaches Kongma La. Neither direction is objectively wrong, and the right choice depends on whether you prioritize acclimatization safety margin or an earlier crack at the Gokyo scenery while the weather window is still fresh.
What a Pass Crossing Actually Feels Like
Reading altitude figures and technical descriptions only tells part of the story, and it helps to understand what the physical experience of crossing one of these passes actually feels like on the day. Most crossings on any of the three passes start well before dawn, often at three or four in the morning, since snow and ice conditions are firmer and safer to walk on in the cold hours before the sun softens the surface, and because afternoon cloud and wind on all three passes tend to build as the day goes on, making an early start the safest option regardless of which pass you are crossing. The walk up to each pass is a steady, often relentless climb over several hours, broken by short rest stops, and the final approach to the pass itself is frequently the steepest section, whether that is Kongma La’s scree, Cho La’s glacier edge, or Renjo La’s switchbacks. Reaching the top brings a genuine and immediate sense of achievement, made sharper by the physical effort of the climb and the altitude’s effect on your breathing, before the work of the descent begins on the far side, often on terrain just as demanding as the climb up. Trekkers who have crossed all three consistently describe the combination of exhaustion and elation at each summit as one of the most memorable parts of the entire Everest region experience, distinct from anything felt on the comparatively gentle main trail to Base Camp.
Altitude Sickness Risk on This Specific Route
Every one of the three passes sits above 5,300 meters, well into altitude territory where acute mountain sickness becomes a genuine and common risk regardless of a trekker’s fitness level or previous experience. What makes the Three Passes route particularly demanding from an altitude standpoint is the repeated exposure to extreme elevation across a relatively short window, with three separate crossings above 5,300 meters spread across roughly two and a half to three weeks, rather than the single high point at Kala Patthar that the standard Base Camp trek involves. This repeated strain is exactly why acclimatization days at Chhukung and Gokyo matter so much on this route, and why cutting those days short to save time is one of the more dangerous shortcuts a trekker on this itinerary can take. Watching for early symptoms, headache, nausea, unusual fatigue, and loss of appetite, and being willing to delay a pass crossing by a day if those symptoms appear, is a more important skill on this trek than on almost any other standard route in the Everest region.
How the Three Passes Trek Compares to Standard Everest Base Camp
If you have already done or are considering the standard Everest Base Camp trek, it helps to understand exactly how much harder the Three Passes route actually is, rather than assuming it is simply a longer version of the same walk. The standard Base Camp route follows a single well marked trail almost the entire way, with no technical terrain and no pass above roughly 5,545 meters at Kala Patthar, itself an out and back side trip rather than a crossing you have to descend the far side of. The Three Passes route adds three separate high altitude crossings, each requiring genuine route finding skill, comfort with exposed and sometimes loose terrain, and in Cho La’s case actual glacier travel with the right gear. Total trip length also runs longer, typically 18 to 21 days compared to the standard 12 to 14 day Base Camp itinerary, and the overall physical and technical demand is a genuine step up rather than a minor variation. Our honest Everest Base Camp difficulty guide is worth reading first if you have not yet done the standard trek, since it gives you an honest baseline to judge whether you are ready to take on something considerably harder.
Gear Specific to Crossing the Passes
Beyond the standard Everest Base Camp packing list, the Three Passes route calls for a short list of additional gear that matters specifically for the pass crossings. Microspikes or light crampons are essential for the glacier section on Cho La and are useful insurance on icy patches at any of the three passes depending on recent snowfall, and trekking poles become considerably more valuable than on the standard route given the loose scree on Kongma La’s descent and the steep drop on Cho La’s western side. A slightly warmer sleeping bag rating than you would use on the standard Base Camp route is worth the extra weight, since overnight temperatures at the higher camps along this route, including Chhukung and Gokyo, run colder than the equivalent altitude villages on the main trail. Our full Everest Base Camp packing list covers the baseline gear that still applies here, and it is worth adding these pass specific items on top rather than assuming the standard list alone will be sufficient.
Do You Need a Guide for the Three Passes
The Three Passes route falls under the same Khumbu Pasang Lhamu Rural Municipality jurisdiction and Sagarmatha National Park permit system as the standard Everest Base Camp trek, which means a guide is not legally required here either, for the same reasons explained in detail in our guide on whether you need a guide for the Everest Base Camp trek. That said, the practical argument for a guide is considerably stronger on this specific route than on the standard trail. Route finding on Kongma La’s fainter trail, judgment calls about glacier conditions on Cho La, and the ability to read weather and decide whether a pass crossing should be delayed a day are all skills that a guide with genuine experience on this exact route brings, in a way that matters more here than on the well marked, heavily trafficked main trail to Base Camp. Plenty of strong, experienced trekkers still cross all three passes independently, but this is a route where the case for hiring a guide is genuinely stronger than it is for the standard trek, not simply a matter of preference.
Choosing a Trekking Company for This Route
Given the added technical and route finding demands of this trek compared to the standard Base Camp trail, choosing an experienced local company matters more here than almost anywhere else in the Everest region. Ask specifically how many times your assigned guide has crossed all three passes, in which direction, and how recently, since a guide’s comfort with Kongma La’s scree or Cho La’s glacier crossing depends heavily on hands on, recent experience rather than general trekking credentials alone. A company that operates regularly in the Khumbu will also have better real time knowledge of current conditions on each pass, including whether recent snowfall has made a particular crossing more difficult than usual that season, information that can be the difference between a safe crossing and a genuinely dangerous one. Our guide on choosing the best Everest Base Camp trek company covers the general vetting process that applies here as well, though the bar for relevant experience should be set noticeably higher for a guide leading you across all three passes.
Rest Days and Buffer Planning
Because weather can close any of the three passes without much warning, building genuine buffer days into your itinerary, rather than a tight schedule with no slack, is one of the single most important planning decisions for this trek. A realistic itinerary includes at least one full contingency day near each pass that can be used if weather forces a delay, and trekkers who build their schedule around the tightest possible timeline often find themselves facing a difficult choice between a rushed, riskier crossing in marginal conditions or missing a pre booked flight home from Kathmandu. Discuss buffer planning explicitly with your guide or agency before you commit to a fixed itinerary, and treat any schedule that leaves no room at all for a weather delay as a red flag rather than an efficient plan.
Food and Accommodation Along the Route
Lodges at Chhukung, Lobuche, Dzongla, Gokyo, and Lungden are noticeably more basic than the comparatively comfortable teahouses in Namche Bazaar or Dingboche, reflecting both the lower trekker volume on this route and the added difficulty of supplying these more remote stops. Expect simple rooms, shared facilities, and a menu built around the same dal bhat, noodle soups, and basic carbohydrate heavy dishes found throughout the wider Khumbu, with prices running higher than in the busier villages on the main trail due to the added cost of transporting supplies to these less frequently visited stops. Bringing a reasonable stock of your own snacks from Namche or Kathmandu is a sensible precaution, particularly for the stretches around Chhukung and Dzongla where variety is limited and prices are at their highest.
Best Season for the Three Passes
The main autumn window of late September through November and the spring window of March through May remain the most reliable times to attempt all three passes, offering the most stable weather and the clearest visibility for the passes themselves, which is when a closed pass becomes most dangerous to your itinerary since you may need to reroute or wait out weather with limited food and fuel supplies at higher camps. Winter crossings are possible for well prepared, experienced trekkers but carry a real risk of pass closures from fresh snow, as the Renjo La example mentioned earlier shows, and the monsoon season from June through September is generally avoided entirely for this route given the combination of poor visibility, slippery rock on the steeper sections, and increased avalanche risk on snow loaded slopes.
Physical Preparation Specific to This Trek
General trekking fitness that would serve you well on a standard Everest Base Camp trip is a starting point rather than a finishing line for the Three Passes route. Beyond aerobic endurance built through hiking, running, or cycling in the months before your trip, specific preparation for this route should include leg strength work for the sustained, sometimes loose terrain descents on Kongma La and Cho La, since controlled descending on unstable ground uses your muscles very differently than a steady climb. Practicing with trekking poles on uneven terrain before you arrive, rather than picking them up for the first time in Nepal, helps build the balance and rhythm that make a real difference on scree and glacier moraine. If you have access to any real world elevation, even modest hikes above 3,000 meters in the months before your trip give your body a head start on recognizing how it responds to reduced oxygen, though nothing fully substitutes for the acclimatization schedule you will follow once you are actually in the Khumbu.
What Happens if a Pass Closes While You Are Mid Itinerary
Despite careful planning, weather sometimes forces a genuine change of plan partway through the trek, and it is worth understanding your realistic options if this happens to you. If Kongma La is closed by fresh snow or dangerous scree conditions, most itineraries can reroute back through the main Khumbu valley to reach Lobuche and Everest Base Camp by the standard trail instead, missing that specific pass but preserving the rest of the trip. A closed Cho La is more disruptive, since it is the connecting link between the eastern and western halves of the route, and a genuine closure here may require backtracking the way you came rather than continuing forward, which is exactly why buffer days matter so much for this particular pass. A closed Renjo La toward the end of the route is generally the easiest to work around, since an alternative descent back through Namche Bazaar from the Gokyo side remains straightforward even without crossing that final pass. Discussing these contingency routes with your guide or agency before you depart, rather than improvising them mid trip, is a worthwhile part of your planning.
A Realistic Itinerary Shape
A typical counterclockwise Three Passes itinerary starts the same way a standard Everest Base Camp trek does, flying into Lukla and walking up through Phakding and Namche Bazaar with the same acclimatization considerations. From there, the route diverges toward Chhukung rather than continuing straight up the main valley, using Chhukung as a base for acclimatization hikes before crossing Kongma La to Lobuche. From Lobuche, most itineraries include a side trip to Everest Base Camp and Kala Patthar before backtracking to Dzongla and crossing Cho La toward Gokyo. After time at Gokyo Lakes and a climb of Gokyo Ri, the route continues over Renjo La toward Lungden and back down through the Thame valley to Namche Bazaar and Lukla. Building in buffer days around each pass crossing, rather than a tight fixed schedule, is one of the most important planning decisions you can make, since a single weather delay at any of the three passes can otherwise cascade into a missed flight out of Lukla at the end of the trip.
Common Mistakes Trekkers Make on This Route
A frequent mistake is underestimating Kongma La specifically because it comes first in the counterclockwise direction and before trekkers have built confidence from a successful pass crossing, leading some to rush the descent’s loose scree section rather than moving carefully and using trekking poles for stability. Another common error is skipping or shortening acclimatization days at Chhukung or Gokyo to save time, which increases altitude sickness risk right before the physically demanding pass crossings themselves, when you most need to be feeling strong. A third mistake is assuming gear rented for a standard Base Camp trek, without microspikes or a sufficiently warm sleeping bag, will be adequate here, only to discover the gap in preparation exactly when it matters most, partway across Cho La’s glacier section with cold hands and inadequate traction. A fourth, subtler mistake is choosing an agency or guide based purely on price, without asking specifically about their recent, hands on experience with all three passes, since this is one route where that gap in experience can translate directly into a genuinely more dangerous trip rather than simply a less polished one.
Environmental Impact and Responsible Trekking on This Route
The lower trekker volume on the Three Passes route compared to the main Everest Base Camp trail is a genuine asset worth protecting, and trekkers on this route have a real opportunity to keep it that way through simple, responsible choices. Carry out everything you carry in, including packaging and wrappers that are easy to leave behind unintentionally in windy conditions at the passes themselves. Stick to established trails rather than cutting across fragile alpine vegetation or loose slopes, both to protect the terrain and to avoid creating new erosion channels that make the trail less stable for trekkers who follow after you. Support the lodges and villages along this quieter route directly with your business, since Chhukung, Dzongla, and the smaller stops beyond Gokyo depend heavily on the relatively modest number of trekkers who choose this harder circuit over the standard trail, and that income matters proportionally more to these smaller communities than tourist spending does in busier hubs like Namche or Dingboche.
Comparing the Three Passes Trek to Other Everest Region Options
If you are still deciding whether the full Three Passes circuit is the right choice for your trip, it helps to see it alongside the other major route options in the region rather than in isolation. The standard Everest Base Camp trek remains the right starting point for most trekkers, offering the historic and symbolic reward of reaching Base Camp itself with comparatively straightforward trail conditions. A standalone trip focused on the Gokyo valley, without the passes themselves, offers much of the scenic reward of this route, particularly the Gokyo Ri viewpoint and the turquoise lakes, with a fraction of the technical demand, and it is worth reading in full in our dedicated Gokyo Lakes trek guide if the passes themselves feel like more commitment than you want on this particular trip. The full Three Passes circuit remains the right choice specifically for trekkers who have already built confidence on a high altitude route, want a genuine physical and technical challenge, and are drawn to the idea of experiencing the Khumbu from angles that the vast majority of visitors to the region never see.
Insurance Considerations Specific to the Passes
Standard high altitude trekking insurance that covers the Everest Base Camp trek to roughly 6,000 meters is generally sufficient for all three passes, since none of them approach that altitude ceiling, but it is worth confirming your specific policy explicitly covers activities involving glacier travel, since Cho La’s crossing technically falls into that category even though it does not involve roped climbing or technical mountaineering. Some policies distinguish between general high altitude trekking and any activity described as glacier travel or requiring specialized equipment like crampons, so a quick check with your insurer before you travel, specifically naming the Three Passes route and the Cho La crossing, is worth the ten minutes it takes to avoid an unpleasant surprise if you ever need to file a claim.
Frequently Asked Questions
Do all three passes require the same permits as Everest Base Camp
Yes, the entire Three Passes route falls within Sagarmatha National Park and the Khumbu Pasang Lhamu Rural Municipality boundary, so the same two local permits purchased at Monjo cover this circuit as well, with no separate or additional permit required specifically for crossing the passes themselves.
Which of the three passes is the hardest
Kongma La is generally considered the hardest of the three passes, mainly due to its higher altitude, the largest elevation gain of the three, and a long, steep, loose scree descent on the western side toward Lobuche.
Which pass has the best views
Renjo La is widely regarded as offering the best view of the entire Three Passes trek, a wide panorama including Everest, Lhotse, Makalu, and Cho Oyu together with the Gokyo Lakes and the Ngozumpa Glacier, all visible from a single point without climbing any higher.
Do I need crampons for the Three Passes trek
Microspikes or light crampons are commonly recommended for the glacier crossing on Cho La and are useful on icy sections of the other two passes depending on recent snowfall. Full mountaineering crampons and technical climbing gear are not required for any of the three passes under normal conditions.
How long does the full Three Passes trek take
Most itineraries run between 18 and 21 days from Lukla back to Lukla, depending on the exact route, the number of acclimatization and buffer days included, and whether a side trip to Everest Base Camp and Kala Patthar is built into the schedule.
Should a first time Everest region trekker attempt the Three Passes trek
Most experienced guides recommend completing the standard Everest Base Camp trek or an equivalent high altitude multi day trek first, since the Three Passes route demands considerably more altitude experience, route finding comfort, and physical conditioning than the standard trail, and it is not the ideal introduction to trekking in the Everest region for someone with no previous high altitude experience.
Can the passes be crossed in winter
Yes, but winter crossings carry a real risk of pass closures from fresh snowfall, as documented in first hand winter accounts of Renjo La closing while the other two passes remained open on the same trip. Winter attempts should be reserved for well prepared, experienced trekkers with flexible schedules that can absorb a weather delay at any of the three passes.
Which direction should a first time high altitude trekker choose
The counterclockwise direction, crossing Kongma La first, then Cho La, then Renjo La last, is generally the safer choice for a trekker without extensive prior experience at this altitude, since it builds acclimatization gradually before the technical challenges of Cho La and Renjo La, and it means Everest Base Camp itself is reached before any risk of a later pass closure affects the itinerary.
Is a porter available for the Three Passes trek
Yes, porters are available for this route through local agencies in Kathmandu or Namche Bazaar, though it is worth confirming specifically that any porter you hire has genuine experience on this exact circuit, since the terrain at each pass, particularly the loose scree on Kongma La and the glacier crossing on Cho La, demands more from a porter than the comparatively gentle main trail to Everest Base Camp.
Crossing all three passes is a genuinely different undertaking from the standard walk to Everest Base Camp, and understanding each pass on its own terms, rather than as a single generic obstacle repeated three times, is genuinely the best preparation you can realistically do before you go. If you want to plan this route alongside a standard Base Camp itinerary, our guide on the Gokyo Lakes trek covers the valley that Cho La and Renjo La both connect into in far more detail, our piece on whether a guide is required in the Everest region explains the permit rules that apply to this circuit as well, and our current Everest Three Passes trek packages are a good next step if you are ready to book with a company that has genuine, current experience on all three passes.
