Vaigai Dam, an ultimate picnic spot built across the Vaigai River near Andipatti village in Theni district, is around 70km from Madurai on the way to Periyar Wildlife Sanctuary, Thekkadi. It provides drinking water facility to the whole of Madurai and Andipatti region. This popular leisure spot beautifully illuminated on weekends, offers a breath-taking sight. On one side of the dam there is a beautiful garden with all kinds of exotic flowers and plants. Picturesque hills border the river on the other side.