Koshi Tappu Wildlife Reserve lies on the floodplains of the Sapta Koshi River in the south-eastern Terai. The reserve was gazetted in 1976 to preserve habitat for the only remaining population of Wild buffalo, Arna (Bubalus arnee). The 176 sq. km. reserve is Nepal’s smallest wildlife reserve. The eastern and western embankments of the Sapta Koshi River define the area. In 1987, Koshi Tappu was declared a Ramsar site, a wetland of international significance. Government of Nepal has declared the buffer zone ( 173.5 sq. km ) surrounding the reserve in 2004.
- One of the best spot for bird watching in Nepal (A total of 280 different species of birds have been recorded in the reserve.
- Habitat of wild buffaloes, hog deer, wild boar, spotted deer jackals and Gangetic Dolphin
- Jeep Drive & Boating/Rafting on Koshi River