Royal Manas

Royal Manas National Park is one of Bhutan's oldest and most ecologically significant protected areas, located in the Sarpang district along the country's southern border with India, where it adjoins the Indian Manas National Park and Tiger Reserve. Together, these two parks form a transboundary protected complex of international importance. The Bhutanese portion covers substantial lowland subtropical forest and foothills terrain drained by the Manas River and its tributaries. The park spans an elevation range from the subtropical plains up into montane zones, creating exceptional habitat diversity. Royal Manas is recognized as one of the most biodiverse areas in Bhutan and indeed in the entire Eastern Himalaya biodiversity hotspot.

Royal Manas National Park supports an extraordinary diversity of wildlife, benefiting from its position in the lowland subtropical zone and its connection to both Indian protected areas and Bhutan's upland parks. Tigers are present and represent a key focus of conservation effort, with the transboundary complex forming one of the most viable tiger landscapes in South Asia. Asian elephants move through the park in significant numbers, using the Manas River corridor seasonally. Other large mammals include clouded leopards, gaurs, wild water buffalo, greater one-horned rhinoceroses in the floodplain areas, and various deer species. The park harbors exceptional reptile diversity including mugger crocodiles and water monitors in riverine habitats. Golden langurs, endemic to this region of Bhutan and adjacent India, are a flagship primate species.

The vegetation of Royal Manas National Park reflects its subtropical and lower montane character, with extensive tropical moist deciduous forest dominated by sal and associated hardwood species in the lowlands. Riverine forests along the Manas and its braided tributaries support distinct assemblages of trees adapted to seasonal flooding, while alluvial grasslands provide critical habitat for large herbivores. As elevation increases into the foothills, subtropical evergreen and semi-evergreen forest types become dominant, with increasing species richness and structural complexity. Bamboo thickets are widespread and provide food for elephants and other herbivores. Wetland habitats including oxbow lakes and marshes along the river support aquatic vegetation and provide habitat for waterbirds and reptiles.

Royal Manas National Park occupies the geological transition zone between the Himalayan foothills and the Brahmaputra plains, where rivers emerging from the mountains deposit extensive alluvial sediments across flood-prone terrain. The Manas River, a major tributary of the Brahmaputra, carries sediment eroded from crystalline Himalayan rocks and cuts a dynamic channel across the park's lower portions. The Siwalik Hills, composed of younger sedimentary deposits from Himalayan erosion, form the outer foothills that run through the park's northern sections. Riverbank erosion and deposition are active processes that continually reshape the floodplain habitats. The unstable alluvial substrates and seasonal flooding create a mosaic of habitat types across the park's lowland areas.

The climate of Royal Manas National Park is subtropical and strongly monsoonal, with the majority of annual rainfall delivered by the southwest monsoon between June and September. Annual rainfall is high in the foothills due to orographic enhancement as moist air masses rise against the Himalayan front. Winters from November to February are mild and dry in the lowlands, with fog common in valley areas. Summer temperatures in the lowlands are hot and humid. The monsoon season brings heavy flooding to the Manas River and its floodplain, which is ecologically important for maintaining grassland and riparian habitats. The best season for wildlife viewing is the cool dry season from November through April.

The Manas River valley has been inhabited and traversed by human communities for centuries, lying along traditional trade and migration routes between the Himalayan foothills and the Brahmaputra plains. Indigenous communities including the Bodo people and various hill tribes historically used the forest and river resources of the region. The area's wildlife, particularly elephants and tigers, features in the historical records and cultural traditions of both Bhutanese and Indian communities on either side of the border. The royal hunting grounds that predated the park's formal establishment reflect the significance placed on the area's exceptional wildlife by Bhutanese royalty over many generations.

Royal Manas National Park is one of Bhutan's oldest protected areas, with its origins tracing to royal hunting preserves established in the early twentieth century. The area was formally designated as a wildlife sanctuary and subsequently elevated to national park status as part of Bhutan's systematic development of its protected area network. The park's transboundary alignment with India's Manas National Park, itself a UNESCO World Heritage Site, makes it part of one of the most significant conservation complexes in South Asia. Management involves collaboration between Bhutan's Department of Forests and Park Services and Indian conservation authorities, focused on shared wildlife populations and corridor connectivity.

Royal Manas National Park offers wildlife-watching opportunities centered on the diverse habitats of the Manas River valley, including elephant and rhino viewing in the alluvial grasslands and riverside forest. The park can be accessed from Gelephu in southern Bhutan, the nearest major town with air connections to Paro. Guided jeep safaris and nature walks with trained park guides allow visitors to observe wildlife in the riverine and forest habitats. Birdwatching is exceptional, with the park lying along a major bird migration corridor and supporting numerous species of eagles, kingfishers, hornbills, and grassland birds. The Manas River itself offers scenic river experiences.

Facilities for visitors in Royal Manas National Park are modest but developing as southern Bhutan receives increasing attention. Gelephu, accessible by domestic flight from Paro or by road, serves as the base for park visits. Accommodation in Gelephu ranges from basic guesthouses to small lodges. Entry to the park requires the standard Bhutanese tourism permit and an additional national park entry permit. All foreign visitors must use a licensed tour operator and guide under Bhutan's high-value, low-impact tourism policy. The park road network allows vehicle access to certain viewing areas during the dry season; some areas may be inaccessible during heavy monsoon rains due to flooding.

Conservation of Royal Manas National Park is focused on protecting its globally significant wildlife populations and maintaining ecological connectivity with Indian Manas across the border. Anti-poaching measures are a key priority, with ranger patrols and community-based monitoring programs. Human-wildlife conflict, particularly crop and livestock losses to elephants and tigers, is managed through compensation schemes and preventive measures including electric fencing in high-conflict areas. The park cooperates with Indian wildlife authorities on transboundary management of shared elephant and tiger populations. Wetland and grassland habitat management, including controlled burning to maintain open grassland for rhinoceroses and elephants, is part of the ecological management program.