Trek the volcanic island of Nea Kameni, walk earlier steaming vents, be told geology out of your handbook

https://motoclubandorra.com/idiotiki-shore-excursion-sti-santorini-o-kalyteros-tropos-na-deite/

Trek the volcanic island of Nea Kameni, walk previous steaming vents, analyze geology from your e book, and soak in nearby sulfur warm springs.