The Bhote Koshi River is the most challenging river in Nepal for rafting. It is advised for individuals seeking an adrenaline rush who have previous rafting experience. Since the Bhote Koshi River’s water is so chilly, rafting is often not done between December and late February. Wetsuits and peddle jackets are suggested if you plan to raft during these months. To the north-east of the Kathmandu valley, along the Araniko highway, the Bhote Koshi River runs. Of all the rafting adventures in Nepal, the Bhote Koshi River rafting is the toughest and steepest. From the Kathmandu Valley, the travel to the rafting’s starting location takes just three hours.