Rivers, lakes & waterways

Ariyankuppam is defined by its relationship with water, serving as a boundary between inland rivers and the sea. * **Ariyankuppam River (Chunnambar River):** This vital waterway flows through the commune before emptying into the Bay of Bengal, providing a scenic ecosystem and supporting local boating tourism. * **Bay of Bengal:** The eastern border of the commune is the expansive Bay of Bengal coastline, featuring long, sandy beaches like Veerampattinam Beach and Paradise Beach.