Koshi Tappu Wildlife Reserve

Koshi Tappu Wildlife Reserve is a protected area in the eastern Terai of Nepal, encompassing a vast stretch of wetlands, grasslands, and riverine forests along the Koshi River floodplain. Established in 1976, it is a Ramsar site of international importance and one of the premier bird-watching destinations in Asia. The reserve protects the last remaining wild population of the arna (wild water buffalo) and hosts hundreds of bird species, including rare waterfowl, waders, and birds of prey. The Koshi Barrage at the southern end regulates the river's flow.

The climate is humid subtropical with very hot summers (April–June), a heavy monsoon (June–September), and mild winters (November–February). The best bird-watching season is November to March when migratory birds flock to the wetlands. The reserve covers 175 km² and is accessed primarily by boat and on foot.

By Plane

Biratnagar Airport (BIR) is 50 km north. A taxi to reserve headquarters costs around Rs 2000–3000 (1.5 hours).

By Train

No train service to the reserve itself.

By Car / Road

The reserve entrance is near the Koshi Barrage, south of Itahari and Inaruwa. From Kathmandu (450 km, 8–10 hours), take a bus to Itahari then a local bus (Rs 100–200) or taxi to the reserve. The Koshi Highway connects directly.

Boat trips on the Koshi River are the primary way to explore the wetlands. Walking is possible on marked trails and embankments, but a guide is recommended. Bicycle rental is available at some lodges.

• Koshi River and Barrage – The expansive river views and the engineering marvel of the barrage.

• Wild Water Buffalo (Arna) – The reserve's signature mammal, best spotted in the early morning.

• Birdlife – Over 500 species including sarus cranes, storks, ibises, kingfishers, eagles, and wintering ducks and geese.

• Gharial Crocodiles – Sometimes seen basking on sandbanks in the river.

• Gangetic Dolphins – Rare sightings in the deeper channels of the Koshi.

• Elephant Grass Plains – Vast stands of tall grassland that shelter wildlife.

• Bird-watching safaris – Early morning boat trips are the highlight.

• Jungle walks – Guided walks through grasslands and riverine forests.

• Safari drives – Jeep excursions into the reserve.

• Fishing – Permits are available for catch-and-release fishing.

Accommodation within the reserve provides meals (typically dal bhat, rice, vegetables). There are no outside restaurants inside the reserve.

Bottled water is essential. Tea and soft drinks are available at lodges.

• Budget: Koshi Tappu Resort – Rs 1000–1500. Basic cottages with shared bathrooms.
• Mid-range: Wildlife Camp Koshi Tappu – Rs 2000–4000. Comfortable tented accommodation with attached bathrooms and meals included.
• Upscale: Koshi Camp, near reserve entrance – Rs 4000–7000. Eco-lodges with full board and guided activities.

The reserve has minimal shopping. Bring all supplies from Itahari or Biratnagar.

• Itahari (40 km north) – Highway junction town.
• Biratnagar (50 km north) – Koshi's largest city.
• Dharan (55 km north-west) – Hill station gateway.
• Sagarmatha National Park – Though far north, Koshi Tappu is a good prelude to Nepal's mountain parks.