Agasthiyar Falls is located close to the Papanasam Shiva Temple at a distance of about 4 km uphill. It is one of the most popular tourist spots in the region. The height of the waterfall is around 100 metres and it can be reached by trekking from the Papanasam Temple.
This waterfall is believed to have not just the power to wash all sins but is also enriched by medicinal herbs and has the power to heal. One can also trek uphill to its source, the Kalyan Theertham, where the origin of the falls is hidden behind a huge wall-like structure.
Legends say that Saint Agasthiar balanced the earth and saved it from the havoc which was created by the crowd of people who thronged to the marriage ceremony of Lord Shiva.