A repository of some of the rarest medicinal herbs, the Neyyar Dam is a popular picnic spot with a lake and a picturesque dam site. The lake formed by the dam across the Neyyar River is the bluest of blue, making boating irresistible for tourists. The Neyyar Wildlife Sanctuary of which the dam is a part of, is the habitat of over a hundred rare species of fauna including elephants, wild buffaloes, wild boar, porcupines, tigers and a variety of snakes. A crocodile breeding centre and a lion safari park are also located at the dam site. Neyyar is about 32 km from Thiruvananthapuram.