Cho La Pass vs Kongma La vs Renjo La: Which Pass is the Hardest?

If you are planning to join the Everest Three Passes Trek, one of the main concerns you will probably have is: Which Pass is the hardest? Many experts consider Kongma La Pass as the hardest among the three passes in the Everest Region.

The Everest Three Passes Trek offers both an enriching and challenging trekking experience in Nepal. This trek combines the famous route of the Everest Base Camp with three impressive high mountain passes, such as Cho La Pass (5,420 m), Kongma La Pass (5,535 m), and Renjo La Pass (5,360 m).

Kongma La is considered to be the most challenging as it combines extreme high altitude with a long and physically challenging route. The thin air at the altitude of 5,535 m also makes the journey challenging which requires you to be fit enough and properly acclimatized.

This route leading to this pass is also more isolated compared to Cho La and Renjo La. Even though technical climbing skills are not required, the difficult and steep terrain with loose slopes, combined with a lengthy crossing duration, makes it the most challenging out of all passes.

Each high pass of the Everest region presents a unique experience. Learning about all three passes and the challenges that can arise during the crossing lets you have realistic expectations so that you can prepare accordingly and complete the adventure smoothly.

Quick Comparison of Cho La Pass, Kongma La Pass and Renjo La Pass

Cho La Pass

• Altitude: 5,420 m
• Clockwise Route: Dragnag-Dzongla
• Anti-Clockwise Route: Dzongla-Dragnag
• Physical difficulty: High
• Crowds: Moderate
• Overall difficulty: Second Hardest Among the Three Passes

Kongma La Pass

• Altitude: 5,535 m
• Highest pass: Yes
• Clockwise Route: Lobuche-Chhukung
• Anti clockwise Route: Chhukung- Lobuche
• Physical difficulty: Very High
• Crowds: Few
• Overall difficulty: Hardest among the three high passes

Renjo La Pass

• Altitude: 5,360 m
• Clockwise Route: Lungden-Gokyo
• Anti clockwise Route: Gokyo-Lungden
• Physical difficulty: Moderate to Challenging
• Crowds: Few
• Overall difficulty: Relatively less difficult than the other two high passes

Why is Crossing High Mountain Passes Difficult?

Crossing high mountain passes is challenging. It is due to high elevation and rugged terrain. The changing weather conditions can also add to the difficulty. High mountain passes often involve navigation on steep uphill and downhill sections on rugged high altitude ground requiring good balance and careful footing.

In addition, the weather near the high mountain pass is very unpredictable. It can change quickly bringing heavy snow, wind, mist or freezing temperatures. These conditions can make crossing difficult.

Depending on the season, you may find frozen trails, slopes covered with snow and glacier crossings that raise the difficulty level demanding extra caution. Crossing the high mountain pass is also strenuous as it demands several hours of continuous trekking at high altitude.

Fatigue, the probability of experiencing altitude sickness and changing terrain conditions will test your determination and while crossing the high passes of the Everest Region.

Each mountain pass has its own difficulties. Depending on the time of the year and the weather conditions, the situation may change. Being aware of what to expect helps people prepare themselves adequately for the navigation.

Even though crossing the high mountain pass is tough it is one of the most exciting parts of the Himalayas as it rewards trekkers with spectacular mountain scenery and the sense of achievement of reaching one of the highest points on the trail.

Cho La Pass vs Kongma La vs Renjo La

Cho La Pass: The Adventurous Glacier Crossing

As one of the most popular among the three popular passes in the Everest Three Passes Trek at an altitude of 5,420 m. This pass links Dragnag and Dzongla, a village, creating a link between the Everest Base Camp trekking route and the picturesque Gokyo Valley. It is considered more technical among the three high passes because of the glacier crossing and varied terrain.

Crossing this pass can take about 8 to 9 hours. It involves a steep ascent to the top over a rocky path, after which trekkers have to descend through the glacier.

While the glacier is the main highlight of Cho La Pass, it does require extra caution. The snow and ice are often present on the trail during most of the months of the year, so microspikes or crampons can be helpful for smooth navigation. At a high altitude of 5,420 m, acclimatization becomes necessary because the crossing can be challenging due to the thin air.

Once at the top of the peak, you can see colorful prayer flags, as well as spectacular views of Baruntse, Ama Dablam, Cholatse and many other nearby peaks. The beauty of the Himalayan landscapes visible from the summit and the feeling of achievement that comes along with the entire journey are really worth every effort put in.

Although crossing Cho La Pass requires great fitness, planning, and acclimatization, the rewards are truly exceptional. Adventure travelers who wish to navigate the adventurous section of the Everest region can choose to cross Cho La and get rewarded with thrilling experiences as well as the beautiful views of glaciers and majestic Himalayas.

Kongma La Pass: The Highest and Most Demanding

Kongma La Pass’s elevation is 5,535 m. It is the highest of the three famous passes in the Everest region of Nepal. This is one of the most challenging sections of the Three Passes Trek in the Everest region. It connects two villages called Chhukung and Lobuche.

To cross this alpine mountain pass, trekkers have to traverse the high altitude area filled with rocks, glacial moraines and frozen lakes while enjoying magnificent Himalayan vistas. Compared to the busy Everest Base Camp trail, Kongma La offers a much more secluded trekking route with far fewer people on the path.

The way up requires you to navigate steeply through rugged terrain before you reach the top. Also, the path is remote with not teahouse access in between Lobuche and Chhukung. So, you have to bring enough snacks, water and other supplies to cover the entire pass crossing.

Although Kongma La is considered to be quite difficult, all efforts spent to reach the summit are worth it because of the wonderful views of the surrounding snow-clad peaks. From the summit, you can get to see impressive sights of Nuptse, Ama Dablam, Island Peak, Lhotse and beautiful glaciers that surround the mountains.

The combination of remoteness and breathtaking Himalayan landscapes makes the experience very unique. Reaching the top of the summit is indeed a great achievement, making this moment one of the main highlights of the Three High Passes Trek.

Renjo La Pass

Renjo La Pass stands at 5,360 meters. The pass connects the serene Gokyo Valley with Lungden (Lumde). It is relatively easy to cross compared to the two other passes. However, it still remains physically challenging because of the altitude and difficult ascent.

Glacier crossing is not required to cross this pass. So, it is technically less challenging than Kongma La and Cho La. The most remarkable feature of Renjo La is undoubtedly its amazing views. From the top of the pass, you can enjoy the best panoramas of snow-clad mountains like Everest, Lhotse, Makalu, Cho Oyu and nearby snowy peaks.

While Renjo La is regarded as the easiest of the three, its challenges shouldn’t be taken lightly. The elevation of this pass is 5,360 meters. At such an altitude, the air is thin. So, acclimatizing properly prior to crossing the pass is crucial. In addition, the route includes steep paths and rocky sections with loose scree and stone steps.

Most trekkers can cross the pass in around 7 to 8 hours and this long duration at high altitude can be quite exhausting for some.

Being well prepared by enhancing your stamina through cardiovascular exercises and strength training can prepare you for crossing this pass. In addition, proper layering and sturdy hiking boots are also necessary to tackle varied weather and ensure comfort. With the right preparation, crossing the Renjo La pass is achievable for most of the adventurers.

What to Expect on the Trail of Each Pass?

Kongma La Pass

The Kongma La Pass features tough climbs through loose stones, broken rocks, and glacial moraines. So, it is the toughest pass among the three passes.

It is a remote trail. There are no tea houses between Chhukung and Lobuche, and it is advisable to go fully equipped to cross this. Depending on the time of year, the snowy or icy sections may require the use of micro-spikes or crampons.

Also, the trail markers are limited and quickly changing weather can make navigation challenging. So, joining the trek with the guide is highly recommended for a smooth overall journey.

Cho La Pass

Cho La Pass is a technically challenging pass as it involves navigating the glaciers. The path leading to Cho La Pass features rocky paths and a glacier crossing. The path can be slippery because of snow and ice on the ground in certain sections. That’s why each step must be taken with great caution.

Depending on the weather and trail, trekkers may have to use microspikes and crampons. These equipments provide good grip on some steeper sections. Advanced climbing skills are not required here. But having right equipment and guidance from trekking guide is necessary for a safe crossing.

Renjo La Pass

To reach the top of Renjo La Pass, you will have to navigate steep mountainous trails with loose rocks and rocky switchbacks. Sometimes you may also come across snowy paths.

This is the easiest pass out of the three passes since it does not require glacier crossing, but it is still physically challenging as it requires long-duration walking and takes you to the high altitude through steep sections.

Crossing Rejo la does not require advanced climbing skills. However, you must have good stamina and ensure proper acclimatization to avoid altitude sickness which will ultimately help you cross this pass safely and comfortably.

Route Options for Crossing the Everest Three High Passes

There are two ways to do the Everest Three Passes Trek, one is by following the clockwise route and the other is the anti clockwise. Both trekking routes require crossing the same three passes but in different sequences. You may choose the route that suits you according to your preference.

The Anti-Clockwise Route

In the anti-clockwise route, trekkers will have to follow the traditional route of Everest Base Camp first. Starting from a flight to Lukla, the trail leads to stops such as Phakding, Namche Bazaar, Tengboche, Dingboche, and Chhukung. From Chhukung, trekkers will be crossing Kongma La Pass (the highest pass among the three high passes) to reach Lobuche.

This route then involves a visit to Gorakshep, Everest Base Camp and Kala Patthar. Afterwards, trekkers will head towards Dzongla. From here, they will cross the Cho La Pass to reach Dragnag. Then, the trekkers will move into the picturesque valley of Gokyo.

After spending two days in Gokyo exploring the Gokyo Lakes and Gokyo Ri, trekkers will finally cross the Renjo La Pass the next morning. It is the final pass of this route. After reaching its high point, they will descend down to the Lungden village, marking the successful navigation of all three high passes of the Khumbu region.

The Clockwise Route

The clockwise route starts at Lukla, takes trekkers to stops like Phakding, Namche and toward Thame Valley. Afterwards, they will trek to Lungdhen and then cross the Renjo La Pass on the following day to reach the Gokyo Valley.

The trek then passes along the scenic places like Gokyo and Dragnag. From Dragnag, trekkers will make it to Dzongla by crossing the Cho La Pass. After an overnight stay in Dzongla, trekkers will make their way to Gorakshep and also visit Everest Base Camp the following day.

Then, after a morning hike to Kala Patthar, trekkers will head towards Lobuche, stay overnight and cross the Kong Ma La Pass. The clockwise route involves crossing the passes from the lowest to the highest elevation as they will be crossing Renjo La first, followed by Cho La, and finally make it to Kongma La.

Best Time to Cross the Everest Three High Passes

The weather is a crucial factor that significantly impacts the Everest Three Passes Trek. The best seasons to cross the Everest Three High Passes are during spring (March to May) and autumn (September to November), which are characterized by stable weather, comfortable temperatures, ideal trail conditions and stunning mountain views.

In the monsoon season, the trekking trails in general can become slippery because of the rain. So, walking along muddy trails, especially in lower elevation areas can be difficult. Reaching the pass can be more challenging because the visibility might be affected by the haze and cloud cover.

The winter season poses the biggest challenge for crossing these Passes due to the heavy snowfall and extreme cold. That’s why we recommend crossing the pass in the spring and autumn months.

If you choose to cross the three passes during spring and autumn, you can witness the beautiful panoramic scenery of the surrounding vistas and get to trek on well-maintained trails, which lets you ensure a safe and comfortable trekking experience.

How to Prepare for Crossing the Three Passes?

• Choose the ideal seasons (spring and autumn) for trekking. During these months, the weather is favorable and trails are well defined which makes crossing the pass more manageable.
• Trek with an experienced guide. They can help you ensure safe navigation.
• Train yourself by doing cardio and strength training exercises at least 3 to 4 months prior to the trek.
• Practice a long hike with a backpack in nearby areas. This helps you get familiar with high altitude navigation.
• Carry trekking poles. In addition, microspikes are also needed to walk smoothly.
• Climb slowly. Include the acclimatization days to give time for your body to get used to the high Himalayan altitude and to avoid the likelihood of getting altitude sickness.
• Be dressed in layers.
• Make sure to hydrate yourself each day. Have a proper balanced diet.