This inspiring  parabolic structure is the world’s second and Asia’s first arch dam. Its 650 feet wide and 550 feet high. As in Ramayana, during their time of exile Rama and Sita stopped near the Periyar River. One day, a kuravan (male tribal) and kurathi (woman tribal) were caught staring at Sita while she was having her bath in the river. In the fit of anger, Rama crushed them and transformed them into huge rocks. The river averted its course and started flowing in between these rocks.Its between these two rocks that the Idukki Dam stands. Close to the Cheruthoni barrage, to its west is the Kulamavu Dam.

If you love the fierceness of wildlife, here we have the most popular wildlife sanctuary of Kerala. This sanctuary extends over the Thodupuzha and Udumbanchola taluks of Idukki district, spreading over 77 square kilometres sans is about 450-748 metres above the sea level. The Idukki Reservoir formed by the trinity dams – Cheruthoni, Idukki and Kulamavu extends to 33 square kilometers. There is a lake that surrounds this area on three sides with marvelous shading of evergreen forests, semi-evergreen forests, moist deciduous forest which enhances the charisma of the sanctuary.