Trek the volcanic island of Nea Kameni, stroll past steaming vents, be informed geology from your marketing consultant
https://griffincenter.org/santorini-tour-guide-best-routes-local-tips-and-must-see-stops/
Trek the volcanic island of Nea Kameni, stroll previous steaming vents, be taught geology out of your manual, and soak in local sulfur hot springs.