Naini Lake is a natural freshwater body in the heart of Nainital, a popular tourist destination in India's Uttarakhand state. Surrounded by hills, the lake is known for boating, scenic walks, and its crescent shape, formed by tectonic activity and landslides. Activities like boating are popular, with designated areas like Mallital and Tallital at the north and south ends of the lake, respectively, which also feature the local post office, bus and taxi stands.