Chitwan District is one districts of Nepal in the western part of Narayani Zone. It is one of the few remaining serene relics of the Terai.
It  has rich flora and fauna with over 43 species of mammals, nearly 450 species of birds, 45 species of amphibians and reptiles. One can come across single horned Indian Rhinoceros (Rhinoceros unicornis), panthers / leopards, crocodiles, pythons, several kinds of deer. Otter, small Indian civet, large Indian civet, spotted linsang, common palm civet, leopard cat, marbled cat and fishing cat, Indian pangolin, Indian hare and Ganges dolphin are some of the fauna which can also be spotted here. Chitwan National Park is also one of the last refuges of the Royal Bengal tiger. Adventure here includes safari, canoeing, elephant rides, and guided jungle walks. Two nearby National Park are Parsa Wildlife Reserve in the east and Bara Hunting Reserve further east. This national park is approximately 10 kilometers from Bharatpur. Royal Chitwan National Park is a World Heritage Site of subtropical lowlands of sal forests, tall grasslands and  lakes.