Extending into Bhutan, Manas National Park forms one of the largest uninterrupted protected areas on the subcontinent and is a UNESCO Natural World Heritage Site of great importance. A total of 55 mammals have been recorded in Mana and some of the most sought-after Himalayan foothill bird species are found there including the Bengal florican, great hornbill, ibisbill and red-headed trogon.
Passing through the heart of the park is the Manas River, a tributary of the mighty Brahmaputra. The landscape is a mixture of dense rainforests and grasslands providing ideal habitat for rich birdlife and a variety of rare and endangered endemics such as golden langur, and more readily recognisable Indian mammals such as tiger, elephant and one-horned rhinoceros.