The reason for Assam being an evergreen destination of a true nature lover and traveler is nothing other than its natural beauty. The vast landscapes rich with vegetation are a natural habitat for wild life. Government of Assam had taken praiseworthy policies to promote tourism without disturbing the ecosystem. The conservation of the environment of Assam is significantly promoted through areas designated as wild life sanctuaries and parks. Dibro Saikhowa is the largest national park in Assam that spreads to an extent of 650 sq km with enriched biodiversity. This park situates in Tinsukia town  is surrounded by river Brahmaputra and Hills of Arunachal pradhesh in the northern side and dibru , patkai hills on the southern side. It is 515 kms away from Guwahati and 13 kms north in the Tinsukia town. It is a biosphere reserve comes under the IUCN category 11 National park.

In 1890 Dibru was declared as reserved forest and by 1920 the area was extended. In 1929 Saikhowa Reserved forest was declared. In the year 1997 Dibru – Saikhowa was jointly declared as biosphere reserve with an extent of 765 sq km instead of the initially declared 650 sq km. 340 sq km was designated as the core area and in 1999, 340 sq km was officially declared as the national park. Currently Dibru Saikhowa is one among the 19 popular biodiversity areas in the world. Though rich in biodiversity, the park was formed for the conservation of endangered, rare species of white winged wood duck. Soon along with the conservation of white winged wood duck, it became a natural breeding habitat of bright colored Feral Horses belonged to the rare wild horse category.  Situating above 118meters of sea level this park is a natural habitat of rare species of plants, birds, amphibians, and animals. The fertile soil and swampy region has vast region of semi wet evergreen forests, bamboo forests that provides cane breaks, grass lands, rare medicinal plants, herbs and shrubs and tropical moist deciduous forests. In the north east region of India Dibru Saikhowa is the largest Salix swamp forest. Among more than 600 varieties of bird species, migratory bird population is high in this park. The bird species include rare category of white bellied heron, pale capped pigeon, spot billed pelican, brahmini duck, bar headed goose, pelican, black stork, greyleg goose, pallah’s fishing eagle and swamp francolin that is a treat to a bird watcher and several bird population survey is conducted in this region. The park is rich in fish diversity as it is the auto stocking of river Brahmaputra and Dibru.  including the rare gangetic river dolphin that promotes the bird life. The animal species include Hoolock Gibbon, capped langur, slow loris, elephant, tiger and water buffalo.

The department of tourism administers the tourism activities in this region with strict rules and regulations for restricting any disturbing activities harmful to the natural habitat by the visitors. Rainfall in this region is form 2300 mm to 3800mm in the months of June, July, August and September. The lowest temperature is 7 degree Celsius and highest is 34 degree Celsius. December and January has the cool climate. Visitors can visit the park depending on the choice of the climatic conditions. A person who loves to watch bio diversity in one place will not miss chance of enjoying the days in this forest. During December and January a serene cool climate makes the forest more accessible to any visitor.  The park is open to visitors from November to April. The entry to the park is subject to the written permission from the park authorities. There are eco lodges available and Lodging is provided in the Gujjan forest, 10km away from the park. Two forest villages Dhadia and laika situates inside the park. Night stay and picnicking inside the park and entry before sunset and sunrise is also prohibited. Gujjan ghat and Saikhowa ghat are the two main entry points to the park. Air, rail and road transport facility can be accessed to reach.