At the foot of the Himalayas, Chitwan is one of the few undisturbed areas of the Terai region which formerly extended over the foothills of India and Nepal, with its very rich flora and fauna. One of the last populations of single-horned Asiatic rhinoceros lives in the park, which is also among the last refuges for the Bengal tiger. Tourists usually do the elephant trek to see the rhinoceros living in the park and do guided walks into the park.