The Neyyar reservoir is easily navigable and extends 9.06 sq. km. The vegetation varies from tropical wet evergreen to grasslands. The Agasthyakoodam hill, 1890 metres high, lies in the premises of the sanctuary. Elephants, gaur, sloth bear, Nilgiri tahr, jungle cat, wild boar, Nilgiri langur etc. are seen. A crocodile rearing centre, deer farm and lion safari park are the main attractions.