Also known as the Thekkady Wildlife sanctuary, the Periyar wildlife sanctuary is located in the hills of the Western Ghats spreading over an area of 675 sqkm. With its geomorphology, wildlife, beautiful landscape and the picturesque Periyar lake within, the sanctuary is a major tourism center in Kerala and attracts a very large number of tourists each year. With Over 1800 flowering plants including 171 grass species and 143 species of orchids, 35 species of mammals and 265 varieties of bird species, the Periyar sanctuary is a repository of endemic, rare and endangered flora and fauna. Wild elephants, gaurs, langur, sambar deer, Malabar giant squirrel, flying squirrel, Cobra, viper, krait, hombill, stork, woodpecker, kingfisher, raptor, darter, cormorant, grackle, cluster etc... can be spotted here. Some of the famous tea gardens are also located around this place. Boating and trekking at the Thekkady (Periyar) Wildlife reserve is a memorable experience.

Major attractions of Periyar wildlife sanctuary are boat cruises on the lake, elephant ride, trekking, wildlife photography and bird watching.