Santorini, together with the islands of Therasia and Aspronisi, are the remnants of the volcanic island Strongyle. Strongyle was an imposing volcanic cone, the main part of which erupted in 1613 BC, destroying the prehistoric native culture of the island, and giving birth to the present day Santorini “Caldera”. The islands Nea Kameni and Palia Kameni, the active submarine volcano Kolumbo and the Christiana islets are part of the Santorini volcano. The volcano is monitored by terrestrial and satellite systems, which record even the slightest change in volcanic activity, ready to give real-time warnings. A visit to the volcanoes of Nea Kameni and Palia Kameni and their hot springs will bring you closer to the legend of the Lost City of Atlantis and the origins of Santorini. It attracts thousands of visitors every year, with organised daily boat trips.