Trek Overview
Borasu Pass Trek - Har Ki Dun Valley to Chitkul Himalayan Crossover
About Borasu Pass Trek
Govind National Park, Uttarakhand to Chitkul, Himachal Pradesh — Max Altitude 17,880 Ft
The Borasu Pass Trek is one of India's most challenging and spectacular high-altitude Himalayan expeditions. Connecting the famous Har Ki Dun Valley in Uttarakhand with Chitkul in Himachal Pradesh, this extraordinary crossover trek offers adventure enthusiasts a rare opportunity to experience remote Himalayan wilderness, glaciers, alpine meadows, high mountain passes, and breathtaking panoramic views.
A Premier High-Altitude Himalayan Crossover
Standing at an impressive altitude of 5,450 meters (17,880 feet), Borasu Pass is among the highest trekking passes accessible in the Indian Himalayas. The Borasu Pass Trek package is specially designed for experienced trekkers seeking a true mountaineering-style trekking experience. Covering approximately 64 to 76 kilometers over eight days, the route passes through some of the most pristine landscapes in Uttarakhand and Himachal Pradesh.
Trek Route & Key Waypoints
The journey begins from Dehradun and heads towards Sankri, the gateway to many famous Himalayan treks. From there, trekkers travel through Taluka, Osla, Seematra, Har Ki Dun, Ratta Tho, Upper Lamjunga, and finally the majestic Borasu Pass before descending into the beautiful Baspa Valley and Chitkul — the last inhabited village near the Indo-Tibet border.
Har Ki Dun — The Valley of Gods
One of the major highlights of the Borasu Pass Trek is the iconic Har Ki Dun Valley. Known as the Valley of Gods, Har Ki Dun offers lush meadows, snow-covered peaks, dense forests, and traditional Himalayan villages. As trekkers move higher, the landscape becomes increasingly dramatic with glacier-fed streams, moraine fields, alpine campsites, and technical mountain terrain.
Summit Day — Crossing the Mighty Borasu Pass
The trek reaches its most exciting phase on summit day when participants cross the mighty Borasu Pass. The climb involves traversing snowfields, rocky sections, glacier zones, and steep mountain slopes. Upon reaching the summit, trekkers are rewarded with stunning views of surrounding Himalayan peaks and untouched wilderness stretching across Uttarakhand and Himachal Pradesh.
Best Time & Difficulty Level
The best time to undertake the Borasu Pass Trek is during May to June and September to October. During these months, weather conditions are comparatively stable, snow conditions are manageable, and visibility remains excellent. The difficulty level is classified as Difficult — suitable only for experienced trekkers with prior high-altitude experience and excellent physical fitness. The trek package includes transportation, accommodation, all meals, certified guides, technical equipment, camping gear, permits, and support staff.
Day-wise Itinerary
Detailed day plan for your Borasu Pass Trek adventure
Dehradun to Sankri
Distance: 210 KM Drive | Duration: 9–10 Hours | Altitude: 1,920 M (6,299 Ft). Scenic drive from Dehradun to Sankri passing through Mussoorie and the beautiful Tons River Valley. Explore the charming Himalayan village of Sankri on arrival. Overnight stay in guesthouse.
Sankri to Taluka & Trek to Osla
Distance: 20 KM Drive + 13 KM Trek | Duration: Full Day | Altitude: 2,700 M (8,858 Ft). Drive to Taluka and begin trekking through dense conifer forests alongside the Supin River. Pass through traditional Himalayan villages including Osla and Seema. Overnight camp.
Osla to Seematra
Distance: 7 KM Trek | Duration: Approx. 6 Hours | Altitude: 3,400 M (11,155 Ft). Trek through scenic waterfalls and suspension bridges while observing rich Himalayan flora and fauna. Enjoy alpine scenery and peaceful forest surroundings. Overnight camp at Seematra.
Seematra to Har Ki Dun
Distance: 7 KM Trek | Duration: 5–6 Hours | Altitude: 3,645 M (11,959 Ft). Trek into the famous Har Ki Dun Valley — the Valley of Gods — surrounded by snow-capped peaks and vast alpine meadows. Ideal photography opportunities throughout the day. Overnight camping.
Har Ki Dun to Ratta Tho
Distance: 7 KM Trek | Duration: 5–6 Hours | Altitude: 4,105 M (13,468 Ft). Ascend through expansive meadows and glacier-fed streams. Visit the stunning Malinda Tal, a glacial lake formed by the Borasu Glacier. Reach the scenic Ratta Tho campsite for overnight stay.
Ratta Tho to Upper Lamjunga
Distance: 8 KM Trek | Duration: 6–7 Hours | Altitude: 4,899 M (16,073 Ft). One of the most challenging days of the trek. Cross glacier streams and boulder sections while navigating technical terrain near the Borasu Glacier. Reach the high-altitude Upper Lamjunga campsite.
Upper Lamjunga to Borasu Pass & Bonga Camp
Distance: 11 KM Trek | Duration: 8–10 Hours | Altitude: 5,450 M (17,880 Ft) → 4,470 M (14,665 Ft). Summit day — cross the magnificent Borasu Pass and witness panoramic Himalayan views stretching across Uttarakhand and Himachal Pradesh. Descend through snowfields and rocky terrain to overnight stay at Bonga Camp.
Bonga to Chitkul & Drive to Shimla
Distance: 13 KM Trek + Drive to Shimla | Duration: Full Day | Altitude: 3,450 M (11,319 Ft). Descend through beautiful alpine meadows and forests to reach Chitkul — India's last inhabited village near the Indo-Tibet border. Drive onward to Shimla. Trek concludes.
What's Included
Everything covered in your package
Inclusions
- Transportation from Dehradun to Sankri
- Transportation from Chitkul to Shimla
- Guesthouse accommodation in Sankri
- Tented accommodation during trek
- All meals — Day 1 dinner to Day 8 breakfast
- Professional trek leader
- Certified guides
- Experienced cook & support staff
- Forest permits & camping charges
- High-altitude camping equipment
- Sleeping bags & mats
- Basic first aid kit
- Technical equipment (ropes, microspikes, gaiters if required)
Exclusions
- Personal expenses
- Phone calls & laundry expenses
- Travel insurance
- Personal trekking gear
- Shoes, jackets & backpacks
- Emergency evacuation charges
- Mule or helicopter rescue costs
- Stay in Shimla after trek
- Meals in Shimla after trek
- Anything not mentioned in inclusions
Things to Carry
Essential packing list for your trek
Payment Policy & Terms
Important booking information
Payment Policy: Pay ₹1,000 per head to reserve your seat. Remaining amount payable on arrival of trip. Any flight bookings shall be paid 100% in advance. 25% rescheduling charges apply.
Cancellation: If trek is called off due to natural calamity/unforeseen circumstances (rains, earthquake, landslides, strike, pandemic etc), no refund will be provided. Alternatives may be offered based on situation.
Terms: Full payment must be made before trip begins. IDs shall be verified before boarding. Transfer of bookings is not permitted. Drinking & smoking strictly prohibited. Travelers must take care of their luggage. Management not responsible for damage or missing items.
Note: Due to weather, forest officers or government officials may forbid vehicle passage. Travelers may need to use local share transport. No refunds for inclusions not availed by client.
Payment Details
Secure your booking with UPI or bank transfer
Bank Transfer
Account: Explore Hills
A/C No: 5877892417
IFSC: CBIN0284083
Bank: Central Bank of India
Branch: Clement Town
Scan & Pay
Frequently Asked Questions
Common queries about Borasu Pass Trek
The Borasu Pass Trek package starts from ₹31,500 per person. This is an all-inclusive price covering transportation, accommodation, meals, guides, permits, and camping equipment.
The trek is categorized as Difficult and is recommended only for experienced trekkers with previous high-altitude trekking experience. Excellent cardiovascular fitness, endurance, and mental preparedness are essential.
The highest point is Borasu Pass at 5,450 meters (17,880 feet), reached on Day 7 — the summit day of the expedition.
The ideal trekking months are May–June and September–October. These windows offer stable weather, manageable snow conditions, and excellent visibility across the Himalayan landscape.
No. Due to glacier crossings, technical terrain, and very high altitude, this trek is suitable only for experienced trekkers with prior trekking experience above 4,000 meters.
The trek lasts 8 days and 7 nights, covering approximately 64–76 kilometers from Sankri (Uttarakhand) to Chitkul (Himachal Pradesh).
Excellent cardiovascular fitness, endurance training, and previous experience above 4,000 meters are strongly recommended. Regular running, cycling, or stair training for at least 2–3 months before the trek is advised.
Yes. Snowfields, glacier sections, and snow patches are commonly encountered throughout the trek, especially near Borasu Pass, Upper Lamjunga, and the Borasu Glacier zone.
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