The lake was created by connecting natural valley systems to provide water to the growing city of Bangalore in the late 19th century.
The water body covers roughly 37 acres of surface area, with an additional 15 acres of surrounding parkland.
The reservoir is officially managed by the Karnataka Forest Department and the Bruhat Bengaluru Mahanagara Palike.
It serves as a critical nesting site for waterbirds, including spot-billed ducks, little cormorants, and grey herons.
The embankment is reinforced with traditional stonework that dates back to the original colonial-era construction.
The tank acts as an important recharge zone for the local groundwater table in the Malleshwaram and Sadashivanagar neighborhoods.
Sankey Tank is an man-made, 37-acre lake located in the Malleshwaram area of Bangalore. Originally constructed in 1882 by Colonel Richard Hieram Sankey, the reservoir was designed to meet the water supply needs of the city's northern suburbs. The site features a surrounding public park, a walking path, and a dedicated children's play area. It functions as a significant urban wetland, attracting numerous species of migratory and resident birds. The perimeter of the tank spans approximately 2.5 kilometers, providing a popular circuit for walkers and joggers. The park underwent significant restoration and beautification projects led by the Bruhat Bengaluru Mahanagara Palike to manage water quality and public access. It remains one of the few large, well-preserved water bodies in central-north Bangalore.
The viewpoint along the western bund, which offers an unobstructed view of the water with the city skyline in the background.
Stick to the paved walking perimeter to avoid muddy or restricted vegetation zones.
Bring binoculars if you intend to birdwatch, as the islands in the center of the lake host nesting colonies.
Visit during the early morning hours to avoid the peak heat and see the most active birdlife.
Do not attempt to enter the water or swim, as it is prohibited for safety and ecological preservation.
The park typically remains closed for brief periods during routine maintenance or after heavy monsoon rainfall; check local updates for seasonal accessibility.
Refrain from feeding the birds and maintain silence near the water's edge to avoid disturbing the wildlife.
