The attractions of Koshi Tappu are the wild buffalo (Arna), the birds, the Koshi River, and the forest. There is an island in the middle surrounded by rivers. Tourists can take jeep safaris, jungle walks, elephant safaris, and boat rides in Koshi Tappu.

The Koshi Tappu Wildlife Reserve was gazetted in 1976 to preserve habitat for the only remaining population of Wild buffalo, Arna (Bubalus arnee). The area of reserve covers an area of 176 sq. km. is Nepal's smallest wildlife reserve. The government of Nepal declared a buffer zone ( 173.5 sq. km ) surrounding the reserve in 2004.

In 1987, Koshi Tappu was declared a Ramsar site, a wetland of international significance. There are 441 Arna in Koshi Tappu and 300 species of native birds. Ducks are more common in Ramsar areas. Migratory birds come from Siberia during winter. The reserve is home to a wide variety of animals. There are 11 wild elephants living there.

Mid-February to mid-May is the best time to visit Kosi tapu. There are resorts and hotels in the central area of the reserve for food and accommodation. There is a homestay facility in 10 houses of Jamuwa of Kanchanrup Municipality-6, Saptari. Homestay has been started in 2018. Tharu dance and songs with delicious Tharu dishes are the main attraction in the homestay.

Access

Kathmandu-Koshi Tappu is 500 km, 10 hours by bus. Or Kathmandu-Biratnagar 35 minutes by air. Biratnagar-Koshi Tappu 47 km, bus takes an hour and a half.