In the Idukki district of Kerala state in South India, Chinnar Wildlife Sanctuary (CWS) is located. It is 18 km north of Marayoor in the Marayoor and Kanthalloor Panchayats of Devikulam Taluk. It is one of twelve Wildlife Sanctuaries among the protected areas of Kerala.
For about 965 species of flowering plants are there in the sanctuary. Chinnar is a habitat for the endangered Giant Grizzled Squirrel of India. Chinnar Wildlife Sanctuary is situated in the rain-shadow region in the eastern slope of the Western Ghats, adjoining the neighbouring State of Tamil Nadu.
Eco-regions of the sanctuary comprise mostly grassland and wet grasslands vegetation. The Marayoor Sandalwood forest is located here. Rich in wildlife, the mixed deciduous forests here in this 90.44 sq. km. sanctuary are ideal for trekking.
Healthy population of Grizzled Giant Squirrel, Tufted Grey Langur, gaur, Slender Loris, elephant, crocodile, tiger, leopard and many bird species, insects and plants are there in Chinnar. In Chinnar Wildlife Sanctuary, 34 species of Mammals including many Panthers and Spotted deer are found. The largest population of vulnerable Mugger Crocodiles and 52 species of reptiles including 29 species of snakes, Indian Star Tortoise, 245 species of birds including Yellow-throated Bulbuls in Kerala live in Chinnar Wildlife Sanctuary.
River trekking, nature trail to the watch tower, trekking and camping at Vasyappara, trekking to the cultural site, a trek to the Thoovanam falls, tree house at Chinnar are some eco-tourism facilities in Chinnar that are organized by the Forest Department and the Eco-development Committees.