Its thermal waters, flowing from the caves of mythical nymphs, cover an area of 1.68 square kilometre, 3 kilometres long and 2 metres deep. According to myth, the centaur Cheiron washed his wound from Hercules' poisoned arrow in the spring of the Anigrid Nymphs, source of the waters of Kaiafas. The myth provided a simple explanation for the foul sulphuric odour of the thermal waters; however, this does not seem to bother visitors who, since antiquity, have swarmed in Kaiafas for a dip in the precious healing embrace. This is still possible today, as the basic but fully functional spa/healing centre is open all year round.
A small bridge connects the lakeshore with the monastery on the lagoon islet of Agia Ekaterini, making the pleasant walk around the area even more interesting. Accommodation is also available on the islet, while a boat service operates between the hostels and the spa. Of course, thermal waters are not the only option: the long sandy beach of Kaiafas is one of the finest beaches along the west coast of the Peloponnese.