Waterways define the geography and lifestyle of Nani Daman.
* **Daman Ganga River:** This crucial river forms the southern boundary of Nani Daman, physically separating it from Moti Daman. It serves as a working waterway for the local fishing fleet. * **The Arabian Sea:** Nani Daman's western edge is entirely flanked by the Arabian Sea, dictating its climate, economy, and tourism appeal. * **Estuary:** The point where the Daman Ganga meets the Arabian Sea creates a dynamic estuarine environment, best viewed from the Nani Daman Jetty.

