Another tourist attraction of Kalpetta is Banasura Sagar dam. It is the largest earth dam in India and the second largest of its kind in Asia. The dam is made up of massive stacks of stones and boulders.
The Banasura Sagar dam, which is the largest earthen dam in India and the second largest in Asia, impounds the waters of the Karamanathodu, a tributary of the Kabini River. The reservoir formed by the dam is dotted with tiny islands enveloped in thick foliage, and with the Banasura hill in the background, offers a magnificent view. Have the time of your life zooming across the vast expanse of crystal clear waters in a power boat, zigzagging between the tiny islands that speckle the lake face.