Trek the volcanic island of Nea Kameni, walk prior steaming vents, study geology from your booklet
https://cristianiwru641.readspirex.com/posts/top-10-santorini-island-tours-for-first-time-visitors
Trek the volcanic island of Nea Kameni, stroll prior steaming vents, examine geology out of your handbook, and soak in regional sulfur hot springs.