Bhoothathankettu Dam is a natural dam formation and belived its an ancient "Monster Fort" across Periyar River and a nice picnic spot now. Idamalayar Dam, Thattekkad Bird Sanctuary etc are nearest attractions.
6. The Remains of Boothathankettu Natural Dam
Boothathankettu is a natural dam created by two big
floods in Periyar River happened, one during 4th
Century and other on 1341. The massive landslide
brought these big rocks and blocked the path of
river flow.