The sheer volume and intensity of the rapids as well as the cultural experience make the Sun Koshi one of the ten classic rafting rivers in the world. With 270 kilometers of large volume rapids and huge sandy beaches, the Sun Kosi is similar in nature to the Grand Canyon in Colorado . The rapids naturally progress as the Sun Kosi winds its way through the beautiful Mahabharat Range , collecting tributaries from the highest mountains in the world, ranging across eastern Nepal . It is an excellent choice for someone doing a first river trip in Nepal . The river winds past Hindu temples, villages and jungles, emerging from the hills at Chatara to see the vast Gangetic plain stretching endlessly ahead in a moment where legend stirs your soul.