The central basalt column of the fort is an ancient volcanic plug that stands as a prominent landmark for local birding.
The sanctuary is a recognized Important Bird Area (IBA) due to its population of the globally threatened Ashy Minivet.
It is home to the Malabar Trogon, a bird species rarely sighted in the vicinity of metropolitan Mumbai.
The fort at the center was once a strategic maritime watchtower utilized by the Yadava, Tughlaq, and Portuguese empires.
The sanctuary serves as a major catchment area for the local watershed, contributing to nearby reservoirs.
During monsoon months, the sanctuary grounds are populated by numerous species of endemic amphibians and reptiles.
Karnala Bird Sanctuary is a protected forest area centered around a 12th-century hill fort located in the Raigad district of Maharashtra. The sanctuary serves as a vital habitat for over 150 species of resident birds and 37 species of migratory birds. Its topography is dominated by the basaltic pillar of Karnala Fort, which rises 445 meters above sea level. The sanctuary ecosystem consists primarily of moist deciduous forest, providing a canopy for diverse wildlife including langurs, rhesus macaques, and various butterflies. Established in 1968, it covers approximately 12.11 square kilometers. The sanctuary acts as a transition zone between the urban sprawl of Navi Mumbai and the Western Ghats. Visitors typically hike the trail leading from the sanctuary entrance to the base of the fort. The site is a designated protected area under the Maharashtra Forest Department.
The vantage point from the ramparts of Karnala Fort looking out over the dense green canopy.
Wear sturdy hiking boots as the trails become slippery and steep during the monsoon season.
Carry a high-quality pair of binoculars and a camera with a telephoto lens, as avian species are often hidden in the canopy.
Bring sufficient water and snacks, as there are no food vendors located within the sanctuary forest trails.
Avoid visiting during the peak heat of the afternoon, as bird activity decreases and the ascent to the fort becomes strenuous.
Maintain silence to avoid disturbing wildlife, do not feed monkeys or birds, and carry back all personal waste.
