The Karnali is Nepal's longest and largest river and with its tributaries, it drains most of the Far west of Nepal – the 'wild west'. The area that it flows through is wild and relatively unpopulated with some of the most pristine jungle scenery in Nepal, and abundant wildlife.
The rapids are also pretty wild, with the river building to its climax in these lower canyons. The valley narrows into a series of canyons, the river speeds up' and there are big rapid, one leading into another, almost continuously down to the Seti river. The river winds through some magnificent un-spoilt scenery, eventually emerging onto the plains flowing through the Royal Baridia National Park to join the Ganges.
The Karnali is more constrained by its canyon walls giving bigger more continuous and serious rapids. This constrained nature of the river means that any increase in volume has a more pronounced effect on the difficulty of the rapid and this makes it a river that is best run at low and medium flows – in higher water the Karnali is a serious commitment.
About 20-22-hour bus journey to Kalyandada from Kathmandu via Birendranagar, Surkhet west Nepal. Alternatively, an hour flight to Nepalgunja in additional cost then 8-hour bus journey to the put-in point at Kareleghat or drive to new starting point Dungeshwor. The 180 km river action takes 6 - 7 day and after end the trip transportation will be provided from the take-out point at Chisapani to drive back either Pokhara (10-12 hour) or Kathmandu (15 hour) or transfer to Nepalgunja airport to fly back or you may stop at Bardiya National Park for wildlife activities.
The Wild West classic Karnali one consider as longest river of Nepal. The Karnali River rafting combined with some of the most beautiful canyons found in Nepal and a wide variety of biodiversity including dense forests, wild lives and traditional remote villages. After the monsoon rapids are demanding and huge so the rafting there is an unique expedition trip and wildness experience. The river rises from the marginal Himalayan range of Tibet and flowing down to the southern direction to fall into Gangaes, which entered in Nepal from Humla district and cut the Mahabharat mountain near by Chisapani.