Trek the volcanic island of Nea Kameni, walk past steaming vents, learn geology out of your instruction manual
https://beaulluh376.rivetgarden.com/posts/private-sunset-tour-santorini-the-ultimate-golden-hour-experience-2
Trek the volcanic island of Nea Kameni, stroll earlier steaming vents, analyze geology from your publication, and soak in nearby sulfur warm springs.