Trek the volcanic island of Nea Kameni, walk earlier steaming vents, read geology from your book
https://troyijfa726.iamarrows.com/santorini-best-tours-for-foodies-wine-olive-oil-and-farm-to-table-1
Trek the volcanic island of Nea Kameni, walk earlier steaming vents, learn geology out of your consultant, and soak in close by sulfur warm springs.