Water profoundly shapes Mumbai’s geography, climate, and daily life.
* **The Arabian Sea**: Forms Mumbai's western and southern coastlines, defining its peninsular shape and providing its distinctive coastal breezes. * **Lakes**: Powai Lake is a scenic artificial lake in the northern suburbs. Vihar Lake and Tulsi Lake, situated within Sanjay Gandhi National Park, historically supplied the city's drinking water. * **Rivers**: The Mithi River flows through the city into the Arabian Sea, though it faces severe challenges from pollution and urban encroachment. * **Wetlands**: Extensive mangrove ecosystems dot the eastern coastline. The Thane Creek Flamingo Sanctuary is a vital wetland that hosts tens of thousands of migratory flamingos annually.
