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 terrain's and contours. The rivers gush through twisted canyons, and wind through valleys and tame out only as they spill out into the Gigantic 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 ethnic-cultural heritage. White water thrills provide massive doses of adrenaline. White water rafting means cruising down a rushing river in an inflatable rubber raft or white water kayak over crashing waves and swirling rapids for the excitement of a lifetime. Nepal has earned a reputation as one of the best destinations in the world for white water rafting. Nepal's thundering waters, coming from the glaciers of the mighty Himalaya, provide unmatched thrills for rafting and immersing oneself in the landscape. A rafting trip is bound to be the highlight of your stay in the country. Rivers are graded on a scale of one to six, with one being a swimming pool and six a one-way ticket to your maker. Four is considered to be quite challenging without being exceedingly dangerous to the novice rafter. Five requires some previous river experience.