Trek the volcanic island of Nea Kameni, walk prior steaming vents, learn geology from your aid

https://masterd.gr/santorini-full-day-private-tour-the-best-way-to-see-the-island/

Trek the volcanic island of Nea Kameni, walk beyond steaming vents, be trained geology out of your aid, and soak in within sight sulfur sizzling springs.