1. Pichavaram mangrove forest is located near Chidambaram, Cuddalore district.
2. This is the second largest mangrove forest in the world covering about 1,100 hectares (11 sq.km) of area.
3. It is separated from the Bay of Bengal by a sandbar.
4. It consists of species like Avicennia and Rhizophora.
5. It also supports the existence of rare varieties of shell and fin fishes.
