Trek the volcanic island of Nea Kameni, stroll past steaming vents, read geology out of your consultant

https://www.scribd.com/document/1036687577/Santorini-Luxury-Tours-Yachts-Helicopters-and-Five-Star-Tastings-135232

Trek the volcanic island of Nea Kameni, stroll past steaming vents, research geology out of your help, and soak in nearby sulfur warm springs.