River trip in Nepal is a wonderful way to explore and experience Nepal\'s natural and ethnology and cultural heritage. Rivers here are regarded as goddesses, and are included in a number of Hindu and Buddhist religious rituals. Many can be witnessed during a raft adventure. Slopes adjoining the rivers often harbor dense vegetation and interesting wildlife. Several varieties of fish also abound. And rafting in Nepal is a great experience in it\'s own right: the thrill of running white water rapids can be as exhilarating as reaching a mountain summit. The major river systems-- the Koshi, the Karnali and the Gandaki-- belong to the first group. Rivers originating from the Mahabharat Range, which cut through Churia hills, come under the second group. These include the Bagmati, Kamala etc. The third group of rivers originate from the southern face of the Churia hills.