Agios Nikolaos (Methana)
|LAU-1 code no.||5208020203|
The place is known for its small medicinal bath , which is also said to be the one that Pausanias mentioned during his visit to Methana following the historical volcanic eruption (230 BC) on Methana. It originated in the strongly hydrothermally shaped zone in the vicinity of the hydrothermal crater. The entire coastal zone is hydrothermally active there. There are highly carbonated and sulfurous thermal discharges into the sea.
About a kilometer northwest of it are the remains of hydrothermal explosion craters in which at some point (around 30,000 years ago) magma heated the groundwater and led to powerful steam explosions . Even today, this zone is the most potentially dangerous region in the Saronic Gulf , where future volcanic eruptions are possible (likely). The youngest submarine volcano in the Saronic Gulf is located about two kilometers northwest of this zone in the sea between Methana and the island of Angistri.
In the eastern part of the spa town of Methana, at the Agios Nikolaos chapel, there is the newly modernized spa of the same name, which belongs to the Methana Volcanic Spa company. The warmest thermal springs of Methana, which reach temperatures of up to 42 ° C, are used in this spa. The thermal springs here contain slight chlorine and radon and are used against various skin diseases and gynecological problems. These sources are also located in a tectonically active zone that runs through the spa town.