This is the world's second and Asia's first arch dam, constructed across the Kuravan and Kurathi hills. 550 ft. high and 650 ft. wide, the dam lies close to the Cheruthoni barrage. To its west is the Kulamavu Dam. The Idukki Wildlife Sanctuary is located closeby.

(4 km from Thekkady)This plantation town, closely associated with Thekkady, is situated on the outskirts of the Periyar Sanctuary. An important shopping centre and spice trade centre, the main bus station and most of the medium range accommodation in the Periyar region are in Kumily.