The Hollongapar Gibbon Wildlife Sanctuary is the only wildlife sanctuary in India which is home to the hillock gibbon, the only gibbon found in the country. The small wildlife sanctuary is spread across 20.98 kilometres, and many animals and birds live here.
In the Hollongapar Gibbon Wildlife Sanctuary, tourists can catch a glimpse of the Bengal slow loris, Elephants, Tigers, Leopards, Pangolins, Pig-tailed macaque, Assamese macaque, Stump tailed macaque, Rhesus macaque and Capped langurs. Bird watching is also one of the common activities here. Several kinds of migratory and resident birds can be seen in the sanctuary such as the Indian Pied Horn Bill, Osprey, Hill Myna and the Kalij pheasant.
The Hollongapar Gibbon Wildlife Sanctuary is commonly called the Gibbon Wildlife Sanctuary. It is located about 20 kilometres from Jorhat town. The sanctuary has a small rest house that can be booked in advance. The best time to visit is between October and February.