I have heard a lot about the back waters and Mangroves of Pichavaram near the Temple town of Chidambaram and I have always wanted to visit. I managed this finally as, duly approved by the beetter half, we made our way to the backwater from Big Beach Puducherry. On the NH 45A after crossing Cuddalore one has to take a left near C-Mutlur (Okay there is an B--Mutlur but we never saw an A--Mutlur!) Pichavaram is situated in Kille thaluk.
The Boat House and Restarant are Okay. As we reached there mid-morning, the heat was terrible. We took a motor boat and traveled down the back waters. The ecosystem is essentially Halophytic or salt water tolerant. A peculiar flora of the region are stilt mangroves that are essentially inter-tidal marine plants mostly trees bordering coastal areas. In India they are found only in PichAvaram and the Sunderbans. The Mangroves consisting of plants like Rhizophora Apiculata or Rhizophora Mucanota grow on exposed roots that raise the plant above the sea level. The stems are able to exchange gases and as the tides raise every day they also take in water-borne nutrients. . The roots are embedded in the water-soil, and are similar to the Banyan Roots.
For an extra charge the boatmen will take you throgh canals with overhanging branches of Mangroves forming a tunnel of cooling shade.
Pichavaram may be visited once to see this unique eco-system in action.