1. ZANSKAR
The Zanskar is one of the most remote and beautiful rivers in India, and the only one high enough to raft in the summers. The 120km-long run from Padum (the headquarters of Zanskar) to Nimu (the confluence of the Indus and Zanskar) passes through magnificent mountain gorges and involves some thrilling whitewater. It&rsquos graded 3-4, and has no road support. At the end of each tough day you&rsquoll be camping in utter wilderness. Outfits organizing rafting trips include Himalayan River Runners (011-26852602 www.hrrindia.com), Mercury Himalayan Explorations (011-23346209 www.himalayanadventure.com) and Snow Leopard Adventures (www.snowleopardadventures.com).