Borasu Pass Trek

 Dehradun    6 Nights/7 Days 85 people interested today
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6 Nights/7 Days
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2 to 8 people
Hindi, English
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Trip Overview

Tricky landscapes which you will have to negotiate with crampons and ice axes, snuggle inside the sleeping bag in one of the windiest campsites in the Himalayas, Borasu Pass has all that is needed for an adventurous trek.

  • A trek starting from Dehradun in Uttarakhand and ending at Chitkul in Himachal Pradesh
  • Visits places like Har Ki Dun valley on the way to Borasu Pass
  • The actual trek starts from Taluka near Seema
  • Stays will be arranged in camps, guest houses or in the huts with the native people.
  • Service of an experienced guide
  • Get to know the local culture


Why Choose This?

  • No Hidden Charges: All inclusive price with no hassle of paying on multiple occasions during the trip.
  • Low Batch Requirement: Guaranteed departure for even a 2-member group. 
  • Small Convenient Batch Size: The convenience of a small batch size for best service quality. Maximum of 12 members per group.
  • Road Transportation: All road transportation after the reporting point is included in the cost. Trekking group travels together comfortably.
  • Tented Accommodation: 2 people per tent throughout the trek. We use tents from international brand Vango Halo 300, weather tested beyond the European standard EN5912.


Detailed Overview

Borasu pass is one of the many passes that cross into Himachal from Uttarakhand. It connects the Tons river valley with Baspa river valley. The pass is open only for a few months before monsoons and then for a month or two before the winter sets in. This itself explains the uniqueness of this trek. The trek to Borasu is high but doable. We trek into the great Kinnaur Valley and takes 3 to 4 days from Har Ki Dun forest rest house to Chitkul road head in the Baspa Valley. From Har ki Dun the trail heads north along the Marinda Gad. Beyond that, the ascent eases and the path winds up for 5km through a flower-strewn narrow valley. With a glacier on the further right and a strenuous climb for about 4 km, the pass unwinds itself. Descend the rocky slopes and down to the Baspa bed. Cross the river by a bridge and reach the Doaria campgrounds. From Doaria the trek to Chitkul is very easy. This trek is one of the best ways to experience the Himalayan culture of Garhwal and Kinnaur.  


Detailed Itinerary

Day-1: Dehradun to Sankri - 8 hrs drive

We will start early from Dehradun and reach Sankri by evening. We will be travelling on the road going through Mussoorie- Nainbagh- Damta- Naugaon-Purola-Mori-Netwar. The final 22 km of this ride will be through the Govind national park on a rough terrain.We spent the night in guesthouses in Sankri.

Day-2: Sankri to Seema (2100 m) - 1 hr drive + 5-6 hrs trek

After breakfast, we will drive from Sankri to Taluka. It will be a one hour ride through some rough terrains. The trek commences from Taluka. Our trail will be beside the furious river Tons, and through the woods filled with walnut, pine and other trees. It will be a pleasant walk with local villagers and beautiful views greeting you.

Our trek cross path over a few streams which merge with Tons. After a few hours of walk, you will be able to see the village of Gangad towards the left, across the river. From there, we continue our hike and after about an hour’s walk, you can see the village of Osla. Seema is a tiny settlement opposite to the river from Osla. We will set camp here or stay in a hut with a local family.

Day-3: Seema to Har-ki-Dun (3510 m) – 4-5 hrs

From Seema, we will cross the river and reach Osla. From Osla, our trail will gradually rise higher and pass through bushes of flowers like orchids, fleece and sunflowers. We will be climbing high above the confluence of Tons river and the river from Ruinsara valley.

After trekking higher up along the left side of Tons River, we will camp at a very good spot in Har ki Dun, located at the foot of two valleys, one from Jaundhar glacier and the other from beyond the Hata glacier.

Day-4: Har ki Dun – Ratha Tho (4200 m)

Today we trek at a moderate pace to reach Ratha Tho. There are some boulders in the way but none too hard to negotiate. You will also get some great views of snow-covered peaks during the walk. Overnight stay in tents.

Day-5: Ratha Tho to Borasu pass base camp (upper Lamjung)

On this day, we walk higher up. The path is over boulders and more often covered in snow. The campsite at upper Lamjung will also be under snow most of the time. From here, you will get a beautiful view of the valley behind.

Day-6: Borasu pass base camp (upper Lamjung) to Bonga via Borasu pass (5360 m)

We start before sunrise for this day’s trek. As we keep moving higher up, the views open up behind us. After crossing two glaciers and a final ascent over boulders, the cradle-shaped Borasu pass will show up before us. From there, we descend towards the Himachal side of the pass into a large glacier. We will have to slide down on that with the support of an ice axe for some distance.This trek further is a tributary of Baspa river. We may find shepherds on the way.

Day-7: Bonga - Chitkul (3430 m) Today's trek takes about 8 hrs.

This is an easy walk through flower fields and forests and end the trek at Chitkul village. 



Basic Details

Start Point
Finish Point
Activity Level
Start time
6:30 am
Trekking and HikingCamping
Trip Code


  • Transportation as per the itinerary in shared vehicle
  • Transportation from Dehradun to Sankri. 
  • Service of experienced mountain guide & helper staff
  • Tented accommodation during the trek - twin sharing basis
  • Camping arrangement (tent, sleeping bag, camping mattress,camping stools, mess tent, toilet tent and First Aid)
  • All meals (from dinner on day-1 to lunch on day 7)
  • Porter/Mule for carrying camping equipment & ration
  • All permits and forest fees


  • Insurance of any kind
  • Porterage for personal luggage
  • Meals during road journey
  • Anything not specified in inclusions

Why book with TRODLY

  • Best Price Guarantee
  • Verified customer reviews that help you make the right decision.
  • Qualified operators. All partner operators selected after rigorous system of checks.
  • Free Cancellation on Most Trips
  • Only Best Trips - Our team of travel experts bring uniquely local, safe, and exciting experiences to the community.
  • 100% Secured Payments

Important Information

Best Season: Jun-Oct
Level: Difficult
Total Trek Distance: 80 km
Maximum Elevation: 5360 m Borasu Pass

Cancellation Policy

  • 75% refund if cancelled before 15 days
  • 50% refund if cancelled before 7 days
  • No refund after that


Frequently Asked Questions (FAQs)

We keep our groups small for better over all experience. Typically our group size is between 6 to 10 trekkers. On few long weekends and holidays could see a group size of upto 15.

14 travellers found this helpful

We serve delicious Indian vegetarian food and eggs during the trek.

8 travellers found this helpful

Yes all published dates are final and departures are guaranteed. Even if that its just you, we will proceed with the trek.

12 travellers found this helpful

Toilet tents are set-up at the campsites. These are dry-pit temporary toilets and most hygienic as well as convenient way to answer nature’s call in the wild.

10 travellers found this helpful

You will receive good network up to the towns of Mussoorie, Rishikesh. Beyond these network is intermittent and quite weak. Please inform anxious family members in advance that you will be out of coverage area during this trek. There will be no electric charging points anywhere on the trek.

9 travellers found this helpful

Ideally trekking shoes/boots with ankle support are needed for any trek in the Himalayan region. Quechua shoes available at Decathlon are a value for money option.

2 travellers found this helpful

Our tented accommodation is provided at twin sharing basis. The tents that we provide are best in class and are professional grade. You can read more about it here:

10 travellers found this helpful

Meet-up Information/Reporting Point

  • Dehradun
  • The local person's contact details will be shared in the booking voucher which is sent via email. 
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₹ 31395 Per Person
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