Borasu Pass Trek

Borasu Pass Trek

Uttarakhand 9 Days


63 KM

MAX 15


5360 mts.

29200 + 5% GST

Sankri to Chitkul

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Brief Description

Every year lots of trekkers from around the world come for Har Ki Dun trek. It is one of the most beautiful all season treks. However, very few know that if you continue on the same trail further, you can cross into Himachal. The pass which you will be using to do so is known as “Borasu Pass“. It connects Tons Valley in Uttarakhand with Baspa Valley in Himachal. Trek to Barasu Pass offers the true promise of adventure. It is considered a strenuous trek, with pass located at a high altitude of 5360 M. The trek starts from Lovely “Taluka” Village and goes via villages of Gangaad, Dhatmir, Seema and Osla until Har Ki Dun. The trek passes through dense forests consisting of chestnut, walnut, willow and chinar trees. The trek from Osla to Har-ki-doon is through terraced mountain fields, lush green grassy patches, and thick coniferous forests The trail from Har ki Dun to Chitkul (In Himachal) covers all kinds of landscapes that may require the use of some technical equipment too. Being on the border of Indian Himalayas the pass is very close to Tibet. The Borasu Pass trek is meant for experienced trekkers only due to its taxing trail, boulder sections, multiple glacier crossings infested with crevasses, steep ascents and descents. The best months for the Borasu Pass Trek is May, June, Late-September and October. Stay on this page for more information on the Borasu Pass Trek.


Day 1

Arrive in Sankri

Report in Sankri by 3 PM. Sankri is 185 km away from Dehradun. If you opt for transport from us then we will pick you up from Dehradun ISBT by 7am and drive to Sankri. You can also get a shared taxi or public transport for Sankri early in the morning from Dehradun bus stand. It will take 7-9 hours for you to reach Sankri from Dehradun. Night stay in Hotel / Guesthouse.

Day 2

Sankri to Taluka (12 Kms by Road ), Taluka to Seema (12 kms trek)

Early morning drive from Sankri to Taluka in a Taxi. Taluka is the starting point of our Borasu Pass Trek. After Breakfast in Taluka, we will Start trekking with packed lunch to Seema (2260m) on an even surface through thick forests of chestnuts, walnuts, willows, chinars and a variety of conifer trees. The trail is adorned with waterfalls. You could either opt for the steep climb of Dhaatmeer village or just trek along the Karmanasha stream. Both the routes meet at Gangaar village. Reach Seema Camps by late afternoon. Overnight stay in tents.

Day 3

Seema (2,200 M) to Har ki Dun (3,510 M) - 14 kms trek, 4-5 hours

The trail from Seema initially continues on the true left of the valley, goes past fields followed by crossing a hanging bridge over river Rupin, to the true right of the valley. The trail now ascends, go past through fields and pastures with huts. The coniferous flora on the opposite side of the valley is awesome and much adorable. The trail climbs to the ridge locally named as Kalkatti Dhar, from where the trail traverses to give you an awesome view of Har Ki Dun. From here initially, the trail climbs gradually and later gets steep in times go past through beautiful meadows to the campsite at Har Ki Dun. The campsite is by the small stream, with peaks of Har Ki Dun and Swargarohini towering above. Overnight in the tents.

Day 4

Har ki Dun (3,510 M) to Ratha Tho (4,200 M) via Morinda Tal (3,800 M) - 6 km, 4-5 hours

Cross the wooden bridge near Har ki Dun Forest Rest House and take the mud trail towards right leading to a lush green valley. Hata peak (just behind forest rest house ) and Swargarohini Peak are prominently seen from here. Continue on the trail which then passes through huge boulders. When the tree line ends, you see a huge valley with a stream coming from Morinda Tal, a glacial lake formed by the streams coming from Borasu Glacier. The valley gets narrower with huge rocks and boulders all around. Following this you will come across a green meadow and a rocky trail with an ascent that takes you to the campsite of Ratha Tho. We camp here for the night.

Day 5

Ratha Tho to Saunbhera - 2 hours

Today is going to be a short trek. The trail takes you through boulders and waters of Borasu Glacier with mesmerizing views of the Borasu Pass and peaks. Crossing streams the trail will take you to a flat meadow thus alternating between meadows and rocky terrain. We will continue walking over scree and thin ice with snow patches between rocky landscapes. Climbing a snowfield following a trek for about 30 mins will take you to the campsite of Saunbhera. This is a huge meadow with streams that flow down to form Marinda Tal. You get to see the Borasu Pass and other splendid peaks from this campsite. We camp here for the night. Spend the rest of the day resting and exploring the surroundings. Overnight in tents.

Day 6

Saunbhera to Borasu Pass Base Camp (Upper Lamjung) (4,900 M) - 3 to 4 hours

Today's trek will be a short one as well. Leaving behind Saunbhera the trail takes you over scree with huge boulders and loose rocks. After an hour negotiating scree and moraines, you will reach the campsite of Upper Lamjung which is also the Borasu Pass Base Camp. The campsite area is quite limited but gives you the best view of the Borasu Pass. Lamjunga in local language means "Long Moustache" as the ridges below the pass give the appearance of a long moustache. Following a climb over a steep ridge, you will reach the Upper Lamjunga campsite where we will camp for the night. The campsite is between the Borasu Pass and the Borasu Glacier. Overnight in tents.

Day 7

Borasu Pass Base Camp (Upper Lamjung) (4,900 M) to Bonga (4,000 M) via Borasu Pass (5,360 M) - 12 kms, 7 to 8 hours

We start as early as possible with the first rays of sun shining on the surrounding peaks. Looking behind en route to the pass gives you beautiful views of the Borasu Glacier, Saunbhera campsite, green valleys and zig-zag streams. The trail takes you between boulders on a gradual snow slope that becomes steep eventually. The next 45 mins you will trek on a trail alternating between as steep slope and a plain snowfield. From this point onwards we might have to rope up or cut steps on the ice as the trail becomes steep with some loose rocks here and there. Three hours from the campsite is when you will reach the pass. The view from the pass is mindblowing with snow peaks, vertical snow slopes and the massive Zupica glacier which we will have to cross. We will have to rope up in order to descent from the pass to the other side. The trail takes you over the Zupica Glacier moraine followed by crossing of the Zupica Glacier over thin ice and crevasses for the next 30-45 mins. After ascending a steep scree slope you will have to walk over a ridge to reach the campsite of Bonga. Overnight in tents.

Day 8

Bonga (4,000 M) to Chitkul (3,430 M) - 14 km, 8-9 hours

Today's trek is a long one of 14km that takes you on an initial trail of loose scree and rocks parallel to a stream with snow covered slopes on the other side of the stream. After a couple of hours of gradual descend the trail flattens taking you to a green meadow. For the next couple of hours the trail alternates between a flat terrain and boulders. After a few hours the trail takes you through a dense forest and further down to a meadow before reaching the ITBP camp. This is one of the best walks of this trek. Walk is under the shade with a gentle gradient with a flat trail for the next 3 hours taking you to Chitkul. Overnight in Chitkul Village. Borasu Pass Trek ends here. You may plan your return on the next day.

Day 9

Departure from Chitkul

This day is not included in the fee. In case you book your transportation from Chitkul to Shimla with us, the taxi will pick you up from the guest house in the morning. The drive to Shimla will be for 10-12 hours. Expect to reach Shimla by evening.

Frequently Asked Questions

Pick your question

Eligibility: Is this trek good for me?

Borasu Pass Trek is a difficult level trek i.e. it requires more strength and endurance than easy and moderate level treks. It is a high altitude trek climbing to the height of 5360 meters. Therefore, it is recommended that you first gain experience of trekking to altitudes of 4000 meters, and then move up a notch with Borasu Pass Trek. On Bikat rating scale Borasu Pass trek difficulty level is 5. For details on trek difficulty level, please read on Bikat Rating Scale.

Eligibility: Experience required

Should have at least 7-10 trek days in the Himalayas in their kitty. For the trek’s achieving more than 5000 meters, a person must have prior experience of trekking at altitudes of 3700-4000 meters.

Eligibility: Fitness benchmark

  1. Jog/Run for 5 Kms in 25-30 mins or Walk continuously for 10 km (with 3-4 small breaks) on plain terrain (slight incline is better) - You would be required to produce a screenshot from a fitness app testifying the same
  2. Hold your breath for 40 seconds
  3. 3 sets of Climbing 30 – 40 steps in one stretch
  4. Push Ups – 10
  5. Lunges & Squats – 15 X 2 sets

If you are not meeting these benchmarks, please use the preparation schedule to improve your fitness till you achieve the above benchmarks.

Eligibility: Requisite skills

  • Know campsite basics like how to use a sleeping bag, sleeping tent, toilet tent.
  • Ascending & Descending technique for mountain trails
  • Basics mountain mannerisms
  • Ascending & descending technique on snow
  • Basics of Mountain Sickness
  • Basics of Mountain Hazards
  • How to cross small water streams

About the activity: Why should I go for this trek?

Borasu Pass Trek

One of the most scenic treks in Uttarakhand is the Borasu Pass trek. This trek is meant for seasoned trekkers only. Its a challenging crossover from the beautiful Tons Valley in Uttarakhand to the alluring Baspa Valley in Himachal Pradesh. Trekkers often describe the experience of the entire trail as heavenly. The beauty and the grandeur found on this trek are unmatched. The best months to go for this trek are from the months of May-June and September-October.

Best Season: What are the best months to visit this trek?

Pre-monsoon months of May-June and post-monsoon months of September-October are the best months to do the Borasu Pass Trek.

Packing List: What to pack

Click here for packing list.

Packing List: How should I pack my rucksack?

Packing List: How should I select my trekking shoe?

Connectivity: How to Reach the base of the trek & how to go back from the end point?

The trek begins from Sankri which is about 195 km from Dehradun. Sankri is a small village in Uttarakhand which is a base camp for Uttrakhand treks. There are public buses and shared jeeps running between Dehradun and Sankri. You can also take a shared taxi that will cost you around INR 600. Dehradun is easily accessible through road, rail, and air transport.
By Road: There are no direct buses to Sankri from Delhi. There You can take overnight UKRTC buses and Volvos available from ISBT Kashmere Gate, Delhi to Dehradun. The distance from Delhi to Dehradun is about 247 km. You can also hire a taxi or outstation cab from Delhi to Dehradun.
By Rail: The nearest railway station to Sankri is 187 km away in Dehradun. There are a number of trains running between Delhi and Dehradun like Dehradun Express, Mussoorie Express, Nanda Devi Express. It is advisable to make your train bookings a month in advance.
By Air: The nearest airport from Sankri is Jolly Grant airport in Dehradun which is 213 km away from Sankri. You can reach Dehradun from New Delhi by flight.

Connectivity: What is the cellular network connectivity for this trek?

One can expect BSNL network up to Sankri Village and some points beyond this village (but they are irregular and not very dependable)

Nearby attraction: What are the nearby attractions that I can explore?

Dehradun is located in Uttarakhand which offers a number of places to visit. Robber's cave is a river cave formed in the Himalayas about 8 kilometres from Dehradun. Sahastradhara is a ‘thousand fold spring’ which is famous for its aesthetic beauty. Mindrolling Monastery, the largest Buddhist Vihara of India is another attraction. Lacchiwalla, Malsi Deer Park, Tapkeshwar Temple are a few other to name.

Age limit: What is the minimum & maximum age limit?

The minimum age limit is 13 years. However, minors aged between 13 to 17 should be accompanied by their parents or guardians. If you are above the age of 60, kindly carry a medical certificate from your doctor that deem you fit for adventure activities like trekking.

Accommodation type: What will be the accommodation type in this trek?

When you arrive in Sankri, your stay will be made at local guest house.The rooms will be provided on twin or triple sharing basis. You will receive the details of your accommodation through email few days prior the trek. On trekking days, all the trekkers will be accommodated in twin or triple sharing tents. Along with this, there will be also be a toilet tent and a dining tent installed at every campsite as we roll.

Equipment and facilities: What kind of tents and sleeping bags will be provided to us?

We provide 4 seasons tents by Gipfel for higher altitudes which can easily withstand heavy snowfall and storms. They are spacious enough to accomodate 3 people at once with a vestibule to place the backpacks. Our sleeping bags are made up of Heatseeker Pro synthetic insulation that can provide you comfort in -10 degrees celsius. We also use additional fleece liners to have thermal efficiency even in the extreme temperatures of -17 degrees Celsius. If you carry your own sleeping bag, you will get a cashback reward provided that you inform us after you have booked your trek.

Equipment and facilities: Are there any washroom/toilet facilities on the trek?

Toilet tents will be provided to you on the trek.These are portable toilets tents where a deep pit will be dug. A shovel will be provided inside the tent to cover the waste after you have made your business. You can take a toilet roll inside. Make sure you dig used toilet paper along with the waste. Though water is recommended in place of toilet paper. Please refrain from using wet wipes as they are non-biodegradable. There will be no facility for bathing on the trek. Go through our blog section for tips on how to maintain personal hygiene on treks.

Equipment and facilities: If we trek in snow, what equipment will you provide?

You will be provided with good quality gaiters and microspikes from us depending upon the situation of the snow. Our trek leaders will also be carrying ropes and ice axe.

Equipment and facilities: What kind of food will be provided for the trek?

Vegetarian food will be served throughout the trek. The only non-vegetarian item served on our treks are eggs. Our kitchen staff follows a proper menu for breakfast, lunch and dinner which has been designed in order to fulfil the nutritional requirements of the participants. There will be milk, poha, eggs, muesli/corn flakes, bread and butter served in breakfast. Rice or simple roti sabzi will be packed for lunch. In dinner, you will have dal, egg curry or any other vegetarian dish along with rice, roti, and a dessert item. Packed lunch will be provided to you on the days you are trekking. You are requested to carry your own tiffin box and a mug to consume food. The meals consumed on journey and arrival day are not included in our cost.

Equipment and facilities: What equipment can I rent from you?

You can rent following items from us- Trekking Pole, Trekking Shoes, Fleece Jacket, Rucksack

Weather conditions: What will the temperatures be like during this trek?

During the day, the temperature will range from 5-15 degrees Celsius. The nights will get cold dropping the temperature to -2 to -5 degrees Celsius. The higher the altitude you gain, the colder it gets.

Weather conditions: When will there be snow on this trek?

On Borasu Pass trek you can expect snows in the first season i.e. May-June. It is difficult to expect snow post monsoons in September when the trek opens again for its second season. October is likely to receive fresh snowfall at higher altitudes if the climate is favorable.

Miscellaneous : Is there an option to offload my backpack?

If you want to offload your rucksack, you will have to make a request for offloading a few days prior the trek through an email so that arrangement can be made in advance. You will be charged per day for offloading your rucksack. In case you decide to offload on the spot, you may have to pay a higher price than usual. However offloading your rucksack is not recommended since it is not a safe practice.

Miscellaneous : Who will lead us on the trek?

A team of participant will be led by a course certified trek leader and a local guide. All participants are requested to abide by what their leader says. There will also be a team of kitchen staff and porters on the trek. We maintain 1:8 ratio of trek leader and participants. All our trek leaders and staff have a certified training in first-aid and rescue operation.

Miscellaneous : Is the trekking pole necessary?

Yes, trekking pole is necessary. If you don’t want to buy one, you can rent it from us on minimal daily basis charges. You can request the renting link from us.

Miscellaneous : Are there any local stores/shops from where I can shop trekking necessities?

Dehradun has a sufficiently large market. However, do not leave anything for last minute buying as there will be no time for shopping because of immediate bus to Sankri.

Miscellaneous : Is it safe for solo woman traveller to trek in Fixed departures?

Yes, it is absolutely safe for solo woman to travel in fix departures. Women on the trek will be sharing tent with each other. In case you are the only woman on the trek, you will be given a separate tent.

Miscellaneous : Will you give certificates on completion of trek?

Yes, e-certificates will be given at the end of each trek provided that you completed it. It will bear your name, the trek, and the maximum altitude you achieved on the trek.

Mandatory documents: What are the mandatory documents required for the expedition?

ID Proof (Soft Copy to be sent to us in Advance & original to be carried) and Medical Certificate (Soft Copy to be sent to us & original to be carried) are the mandatory documents required for the trek.

Transport: In case we opt for the transport with you, where will you pick us from and where will you drop?

You can opt for transport at an additional cost. In that case, we will pick you up from Dehradun ISBT and drop you at Shimla ISBT after the completion of the trek at Chitkul

Transport: What time will you drop us at the end point on last day of the trek?

Expect to reach Shimla by evening. So plan your further journey post-1800 hours.

Why Bikat

Learning Experience
  • We are an Adventure Learning Organisation first.
  • We want you to not just complete a trek safely but also pick up some basic trekking knowledge and skills along the way.
  • To achieve this we have integrated learning modules into our itineraries.
  • These modules will help you build the necessary skills to progress from trekking to mountaineering over time.
Loyality Programs

Our community is an integral part of us and we take pride in our trekkers and climbers. When you complete at least three days on any trek or expedition with us, you become eligible for our membership and referral programs.

  • Currently we have three levels:
  • Basic Membership
  • Summiteer Membership
  • Leader Membership
Personalized Attention
  • Our group sizes on treks don’t exceed 15 members in order to maintain a healthy Participants : Leader Ratio of 8:1.
  • Over time we have found this number to be optimum when it comes to ensuring personalised attention to every member of our group.
  • On mountaineering expeditions this number is even smaller. Our group sizes are capped at 12 members ensuring a Participants : HAP Ratio of 2:1.
Best Expedition Leaders
  • Our Expedition leaders are advanced mountaineering course qualified, specially trained in rescue procedures from NIM and certified first-aid responders.
  • Even our local guides are certified first-aid responders.
Eco-friendly Practices
  • Group sizes are capped at 15 people.
  • Batch sizes are capped at 250 people per trail per season.
  • We follow a rolling campsite model.
  • We are constantly exploring and introducing new trails to reduce the burden on existing ones.

For us, a successful summit is not about reaching the highest point of a mountain but about making it safely back to base.

  • To ensure this:
  • Every region of ours is mapped with an emergency evacuation plan.
  • The equipment we use is UIAA certified.
  • Our trek leaders are AMC certified with specialisation in rescue procedures.
  • Our support staffs are trained in first aid as well.


What's Included

Whats Included

  • Meals during the trek From Dinner on Day 1 to Lunch on Day 8
  • Forest Permits/Camping Charges
  • Tents on twin sharing basis, Sleeping bags, mats
  • Micro-spikes, Helmets, Gaiters, as required
  • Experienced Trek guide, cook, helpers, Mules or porters for carrying common supplies
  • Mountaineering course certified Trek Leader with First Aid certification along with special rescue course from NIM, Uttarkashi
  • Guest House/Hotel stay in Sankri on Day 1 & Chitkul on Day 8
  • Stay in camps during the trek

Whats Not Included?

  • Portage of personal bags during the trek
  • Cost of any kind of Travel Insurance
  • Any Expense of personal nature
  • Any Expense not specified in the inclusions list

Cancellation Policy

Cash Refund

Cancellations up to 30 days prior to departure date
5% Deduction

Between 30 days to 15 days prior to departure
50% deduction

Less than 15 days of departure
No Cash Refund

Voucher Refund

Cancellations up to 5 days prior to departure date
No Deduction

Cancellations less than 5 days prior to departure
No Refund

Please note
  • Cash refund is applicable only in case of bookings made without using any promotional offer code or vouchers.
  • This is only a brief of cancellation terms. For finer details please refer Detailed Cancellation Policy.

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