Vihar Lake: Situated within Sanjay Gandhi National Park, it is a vital water source for Mumbai; visitors can enjoy the beautiful natural surroundings and spot migratory birds (with special permission). Tulsi Lake: Famous for being located within Sanjay Gandhi National Park and having a population of freshwater crocodiles; you can enjoy scenic views and spot wildlife, though direct access might be restricted. Powai Lake: A man-made lake known for its scenic beauty, diverse flora and fauna including crocodiles, and proximity to IIT Bombay and Hiranandani Complex; you can take leisurely walks along the promenade and enjoy birdwatching. Modak Sagar Lake: Renowned for its tranquil environment and breathtaking natural beauty surrounded by lush green hills, it's ideal for nature lovers and photographers and offers opportunities for leisurely boat rides and picnics. Tansa Lake: A significant water source for Mumbai located within the Tansa Wildlife Sanctuary; it's perfect for birdwatching, wildlife spotting, trekking through dense forest trails, and photography. Upper Vaitarna Lake: A major dam and reservoir offering panoramic views with the Western Ghats as a backdrop; it's a great spot for picnics, photography, and camping, especially during the monsoon. Bhatsa Lake: While information on specific tourist activities is less prominent, it's a crucial water source for Mumbai.