Ratnagiri (The Ruby Hill): 35 kms. The bare conical rock which abruptly rises from the village Kulittalai has an ancient temple of Shiva dedicated to Rathnagirishwarar. The hill is also known as Manikka Malai and Vatapokki Malai, which rise to a height of about 400 metres. The temple on the summit can be approached by a flight of 952 steps of finely cut stone. The shrine is held in great reverence as Appar visited this place and extolled the deity by singing Tiruppadigam. At the bottom of the hillock is a beautiful tank called Panchakshara Tirtha. The hill is a popular picnic resort for trekking enthusiasts also.