The Koshi is one of Nepal's largest rivers, carrying the waters of the Arun, Tamor and Sun Koshi out of the hills. Inside the reserve it spreads into wide channels with sandbanks and islands. We put in upstream and drift with the current, paddling only to steer, so wildlife hears nothing but the water.
Kingfishers, river terns and lapwings are common; storks and herons stand on the sandbars; ducks rest in the backwaters. Gangetic river dolphins live in the Koshi system and surface briefly to breathe with a puff of air, most often in deeper stretches. Mugger crocodiles and gharial bask on banks in the winter sun. Sightings vary with water level and season.
Life jackets are provided and the water is calm in winter. The trip is suitable for children from about 6 years old. River trips do not run when water is high or fast after rain, and are not offered in the monsoon.
Good for
- Families
- Couples
- Photographers
- Groups
Questions travellers ask
Can you see dolphins at Koshi Tappu?
Gangetic river dolphins live in the Koshi and are sometimes seen from boats in the reserve and below the barrage, most often in winter when water is low. Sightings are never guaranteed.
Is the river trip safe for children?
Yes, in winter when the river is calm. Life jackets are compulsory and boats are steered by trained crew. We recommend it for children aged 6 and over.
Are there crocodiles in the Koshi?
Yes, mugger crocodiles and the rarer gharial. They are wary of boats and are usually seen basking on sandbanks. Follow the crew's instructions and keep hands inside the boat.