Chitwan lies south-west of Kathmandu and is one of the few undisturbed areas of the terai region, with its very flora and fauna. It is a beautiful, peaceful and highly relaxing, magnificent land. The flora and fauna of Chitwan makes it a great place for nature lovers. It has over 50 different species of birds, and 65 different types of butterflies in its hardwood Sal forests, riverine vegetation and savannah. More than 70 different species of grass grow here. The most famous wildlife in Chitwan is perhaps the last populations of single-horned Asian rhinoceros. It is also among the last refuges for the Bengal tiger. Tourists usually do the elephant safari to see the rhinoceros living in the park and do guided walks into the park. There are a number of sacred and historical sites around Chitwan which provide interesting side trips.