Few rafting rivers in the world can match the thundering courses of the rivers of Nepal, which originate from the snow meltdown and the rains in the Himalayan terrains and contours. The rivers gush through twisted canyons, and wind through valleys and tame out only as they spill out into the Gangetic plains of India to merge with other river systems. A river trip is one of the best ways to explore the typical cross-sections of the country's natural and ethno-cultural heritage. White-water thrills provide massive doses of adrenaline.

Rivers are graded on a scale of one to six. A grade one is as placid as a pond and a six is awesome and only to be navigated by experts. Generally, a four is considered to be quite challenging without being exceedingly dangerous to the novice rafter. A five requires some previous river experience. Here are some of the popular rafting trips: