Bhote-Koshi River

The Bhote Kosi or Rongshar Tsangpo and is part of the Kosi or Sapta Kosi river system in Nepal. It originates in Tibet Autonomous Region of China.

The source of the Rongshar Tsangpo or Bhote Kosi lies in the mountains to the east of the Kathmandu-Lhasa Highway in Tibet.After flowing through Tingri County of Tibet, the Rongshar Tsangpo enters Nepal downstream from Drubden, at an elevation of 2,750 metres (9,020 ft).In Nepal, it flows through steep and deep gorges and joins the Sun Kosi, downstream from Barhabise.

The Bhote Kosi is the steepest river rafted in Nepal. With a gradient of 15 m per km it is a full eight times as steep as the Sun Kosi, which it feeds further downstream. The river carves a steep and direct drop at the top that gradually eases to more placid streams and the calmer pools with a 46-km run at the Lamosunga dam. The rapids here are class IV- V at high flow, and III at lower levels. The Bhote Kosi is used for both rafting and kayaking. The river is steep and continuous with one rapid leading into another.

Fact File:

Name of the Trail:


Source of the river:


Put - in point:


How to reach there:

By Pvt. bus from kathmandu (3 Houirs)

Ending point:

Dolal Ghat

Total Rafting days:

2 night 3 days.

Total Rafting stretch:

45 kms. (river)

Rapid grading:

1 to 5 grades.

After Rafting:

Back to kathmandu by Pvt. bus



Day 1 Khadichaur to Dolalghat 
We drive from Kathmandu to Khadichaur. After delicious lunch at Khadichaur, all the important details concerning the trip are thoroughly briefed out prior to rafting. Thereafter, fully equipped with appropriate gear we venture into rafting journey piloted by expert river guide. Paddling along the rhythm of simmering river amid the picturesque landscape, exquisite wilderness and panorama of majestic hills, we head towards Dolalghat. This trip offers a relaxing float evening with abundant beautiful scenery and wildlife to view and photograph along the way. On reaching Dolalghat, we witness terraced fields and traditional Nepali houses perched on the hillsides and slopes. This glorious adventure concludes for the day with camping at a superb site in Dolalghat.

Day 2 Raft up to Kolpa
Maneuvering away from Dolalghat, we position the raft securely along rollicking whitewater towards Kolpa. Absolute thrills run through us as challenging rapids splash against our face rejuvenating our adventure spirit. After hours of rafting amid spectacular landscape and mystical wilderness, we punctuate the trip as we near Kolpa and camp nearby riverside.

Day 3 Raft up to Dumja 
We depart from Kolpa as we continue navigating several fun splashy rapids. Along the trip more spectacular vistas open up as the narrow canyons give way to unusual rock formations. After we have our abundant share of exhilarating rafting experience, we may indulge in off-river time to explore wilderness and ethno cultural life. Finally, we wrap up the trip and head to Kathmandu.

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