Santorini is a volcanic island, which has erupted violently five times in historical records, tearing the original circular island into its present crescent shape. Thirasia, Palia Kameni and Nea Kameni, now surrounded by the crescent moon, have all been torn out. Although it sounds terrible, the latest volcanic eruption was more than 300 years ago. Moreover, it is the blessing of Torre that now tourists can enjoy high-quality volcanic hot springs on Paria Cameni Island and watch a real crater at close range on Nia Cameni Island. It is also because of the volcano that the black, red and yellow beaches on Santorini Island are so fascinating.