Pichavaram
Pichavaram is one of the villages of Parangipettai near Chidambaram in Cuddalore District, Tamil Nadu, India. It is located between the Vellar estuary in the north and Coleroon estuary in the south. The Vellar-Coleroon estuarine complex forms the Killai backwater and the mangroves that are permanently rooted in a few feet of water. It is located at a distance of 243 km from Chennai and 15 km from Chidambaram.
Mangrove forests
Pichavaram consists of a number of islands interspersing a vast expanse of water covered with mangrove forest. The Pichavaram mangrove Forest is one of the largest mangrove forests in India covering about 45 km2 of area. It is separated from the Bay of Bengal by a sand bar. The biotope consists of species like Avicennia and Rhizophora. It also supports the existence of rare varieties of economically important shells and fishes.Under an initiative of the Government of Tamil Nadu aimed at reducing the impact of cyclones, tidal surges, and coastal erosion, as well as supporting biodiversity and local livelihoods, mangroves have been planted in the Cuddlore district along with nine other districts. According to official statistics, more than 2,900 ha of mangrove forests have been planted or restored from 2021 to 2025 under this programme.