Trek the volcanic island of Nea Kameni, stroll previous steaming vents, read geology from your manual

https://www.mediafire.com/file/nf0pn0s3v4lz55q/pdf-32070-29422.pdf/file

Trek the volcanic island of Nea Kameni, walk beyond steaming vents, learn geology out of your instruction, and soak in within sight sulfur hot springs.