Sun Koshi is the longest trip in river miles offered in Nepal, traversing 270 km through the beautiful Mahabharat Range on its meandering way from the put in at Dolal Ghat to the take out at Chatara, far down in the Gangetic Plain. It is quite an experience to begin a river trip just 3 hours out of Kathmandu, barely 60 km from Tibet border, and end the trip looking down the hot, dusty gun barrel of the North Indian Plain just a week later. The Sun Koshi starts fairly relaxed, with class II and small class III rapids to warm up on during the first couple of days. Savvy guides will take this opportunity to get the teams to work with exquisite precision, as on the third day the rapids become more powerful and frequent with high water trips finding themselves astonished at just how big a wave in a river can get. While the lower sections of large volume rivers are usually rather flat, the Sun Koshi reserves some of its biggest and best rapids for the last days. At the right flow, it is an incredible combination of whitewater, scenery, villages, and truly quiet and introspective evenings along what many people consider one of the world's top classic river journeys. Sun Koshi rapids like High anxiety, Meat Grinder, Jaws and Big Dipper are true to their names, be well prepared!