Situated on the Coromandel Coast, water is central to Pondicherry's geography.
- **Bay of Bengal:** The city boasts a long coastline. **Promenade Beach** (Rock Beach) fronts the city center, while **Serenity Beach**, **Auroville Beach**, and **Paradise Beach** offer sandy shores for visitors. - **Rivers:** The city is flanked by the **Gingee River** to the north and the **Chunnambar River** (Ariyankuppam River) to the south. - **Lakes & Backwaters:** **Ousteri Lake** and **Bahour Lake** are the major freshwater bodies, historically supporting local irrigation and now serving as vital ecological reserves and tourist spots.
