Parambikulam Wildlife Sanctuary is a protected forest area of about 285km2 at an altitude of 300m to 1438m and is adjacent to Anamalai wildlife sanctuary. It is now under the consideration of UNESCO to consider as world heritage site. There are different indigenous tribal colonies belonging to Kadar, Muthuvar, Malasar and Mala Malasar. Its home to a large number of wild animals which include large herds of elephants, deers, lion tailed macaques, Tigers and many species of orchids and other plants which adds to the rich diversity of flora and fauna. It has large population of Gaur (Bison), Nilgiri languor, jungle cat, Sloth bear, Sambar and spotted deer, along with some tigers and leopards. The Cannimari Teak Tree, said to be Asia's largest, stands about 5 kms from Thuna-kadavu, the headquarters of Parambikulam.