Rafting is journeying on the torrential river on an inflatable rubber boat. A trained professional river guide heads the rafting team. Normally, the river outfitter provides all the camping equipments and meals. In a country like Nepal, a river trip is one of the best ways to explore a typical cross section of the county’s natural as well as ethno cultural heritage. The adjoining slopes of the river often harbor dense vegetation and interesting wildlife.

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River system can be grouped into three categories on the basis of their origin:

1. Antecedent to Himalayas
2. After the Mahabharat
3. After the Churia range

Antecedent rivers belong to the period prier to the rise of Himalayas. These rivers added their tributaries during or after the Himalayan origin along with the development of monsoon climate. After the formation of Mahabharat hills, the antecedent rivers changed their courses as Mahabharat stood as barriers. As a result, most of the rivers changed their cases either o the east or west. Most of these rivers were responsible to deposit the sediments in the Churia basin. The major river systems namely THE GANDAKI (deepest), THE KARNALI (longest) and THE KOSHI (biggest) belong to the antecedent group.
Rivers originating from the Mahabharat range and cutting through Churia hills come under the second group, these include Bagmati, Kankai and Kamala and etc.

The third group of rivers originates from the southern face of the Churia hills. For the purpose of commercial rafting on Saptagandaki, Saptakoshi and Karnali are in use.
Nine rivers in the three river systems are opened for tourists for river rafting. The rivers are the The Trihsuli, The Budigandaki, The Seti, The Kaligandaki, The Beri, The Sunkosi, The Tamakoshi, the Arun and the Karnali.  Rafting in any other river than these requires a special permit.
The Trishuli is the most popular river for river rafting followed by the Sun koshi. The Trishuli has been so popular because of its accessibility by road along its major part. A Trishuli trip can be easily managed to end at a place where a wild life tour at Chitwan National Park begins.
 
GEARS NEED TO BE CHECK BEFORE DEPART: T-short, short, light cotton trouser, sandal, sneaker, swimming suit, sun hat, sun glass with string, suntan lotion, complete change of clothes, light woolen sweater and sleeping bag. For December, January and February an additional wind prove warm jacket. Besides these you can also carry reading materials, specific medication, camera, film, pocket- knife, and flashlight.
What to bring: Swimsuit, two pairs of changing clothes, sun protect lotion, sandal, sleeping bag, some cash RS for your personal expenses.
The major rivers opened for rafting in Nepal are as follows:

S.n	River	Grade	Days
1.	Karnali	4-5	8 + 3 days travel by bus.
2.	Sun Kosi	4-5	8 + 1days travel by bus.
3.	Trisuli	3	1 - 3 days
4.	Kali Gandaki	5	3 days
5.	Bhote Kosi	4-5	1 – 2 days
6.	Marsyandi	5	5 days.
7.	Arun	4	3 + 2 days travel by bus.
8.	Bheri	3 +	3 + 3 days travel by bus.
9.	Budi Gandaki	4	3 + 1 days travel by bus.