Chitwan National Park is the most popular destination for tourists wanting to have a good experience of the region’s wildlife. In 1984, UNESCO designated Royal Chitwan National Park a Natural World Heritage Site. The Park offers protection to 56 species of mammals including the one-horned rhinoceros, Bengal tiger, leopard, sloth bear, wild elephant, striped hyena, Gangetic dolphin and wild bison. There are estimated to be 470 species of mammals, over 500 species of birds, 126 species of fish, 150 species of butterflies and 47 species of reptiles in the park! A recent study also points out that over a third of Nepal’s tigers are in Chitwan.