East of Therma, are the cold pools and waterfalls of the river Fonias. The walk takes about 45 minutes (5 km) into the Fonias gorge where you will see beautiful pools and waterfalls. Partially some passages have a high degree of difficulty. Caution and good shoes are recommended. For a reason the stream carries the name “Killer” . As a reward for the climbing, you will be in an almost untouched natural landscape and you can refresh yourself from the strenuous hike with a bath in natural water basins at waterfalls. Most visitors are bathing naked! Bathing here is an ice cold and somewhat eerie pleasure. Near the mouth of Fonia flux there is the Fonias tower which stands on the seafront and is well worth a visit.