Trek the volcanic island of Nea Kameni, walk past steaming vents, study geology from your consultant
https://elliotlzfx982.quillnesty.com/posts/private-santorini-tours-tailor-made-itineraries-for-every-traveler
Trek the volcanic island of Nea Kameni, walk earlier steaming vents, be informed geology from your consultant, and soak in within sight sulfur hot springs.