Chitwan National Park is the oldest national park which has already been enlisted in the World Heritage Sites famous for the fauna like one horned rhinoceros and wild elephant and flora and the subtropical and tropical rainforest of Sal Trees.
It is situated at the south central Nepal covering 732 km in the subtropical lowlands comprising the Trishuli forest from Rapti River to the foothills of Mahabharata Range extending over an area of 175 km
This place has climatic seasons for visit since the hot and humid days result the monsoon rainfalls causing flood during June till September. So, best season to visit this National Parks is between September and November, February and April.
Bardia National Park is the most undisturbed national park in the Terai Region with an area of 968 sq.kms and established at 1976. It is situated in the mid far western terai of Karnali River.
Regarding the flora and fauna of this region, one can find the tropical and subtropical forests with more than 70% of the Sal tree and a balanced mixture of grass and savanna and riverine forests. About 1500 habitants have settled around this region
This national park has also been habitat for the many species of endangered animals like wild elephant, rhinoceros, swamp deer, tiger, black buck and gharial crocodile. A good number of migratory and resident birds can also be found there. As a result one can have lots of pleasure visiting this zone by bird watching, sightseeing or doing many things that help to enjoy the nature.
Koshi Tappu Wildlife Reserve is home to more than 280 bird species including 20 duck species, many herons, storks, ibises and egrest. This reserve is a wetland which also includes the Koshi River, one of the gorgeous rivers within the world. The Koshi Barge has been an extremely important home to the migratory birds and home to the population of last surviving wild buffalo or Arna, endangered mammals such as hog deer, spotted deer, as well as endangered gharial crocodile along with gangetic dolphin.
The flora of this region includes tall khar pater grasslands with few patches of Khair sisoo and mixed deciduous riverine forest. This region is also flooded during the rainy season