Tunisia is a very old land, going diagonally from the north by a chain of mountains from the Atlas, which extend in an uninterrupted sequence from small hills and gentle slopes. These mountains are rich in thermal resources, having been used by the Roman emperors and some were known in all of the Mediterranean for their extraordinary therapeutic effect and their waters of the boiling mud. We have selected for you three ancient establishments of which the waters were exploited and considered like thermals well before the Roman Empire.