Rapti River film Location – is the biggest and the most renowned river passing through Chitwan National Park. Rapti is popular for its huge population of Crocodiles, migratory birds, and the unique one-horned rhinos. The local people (Tharu people) use narrow boats called canoes to navigate the river. This means has also been adopted for recreational purposed. There are many areas in the forest where the farmers still depend on their canoes for their living.