The group of students on the first hike (Photo: Tom Pfeiffer)
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santorini_d20394.jpg (Photo: Tom Pfeiffer)
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santorini_d20407.jpg (Photo: Tom Pfeiffer)
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The Cape Riva ignimbrite (18,000 y. old) and the base of the Minoan pumice (Photo: Tom Pfeiffer)
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santorini_d20414.jpg (Photo: Tom Pfeiffer)
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Olive leave in a 40,000 y.o. ash layer (Photo: Tom Pfeiffer)
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The pumice and ash deposits of the Minoan eruption of Santorini; two of the students for scale. (Pho...
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The students on the way to the Plaka bay (Photo: Tom Pfeiffer)
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santorini_d20437.jpg (Photo: Tom Pfeiffer)
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santorini_d20440.jpg (Photo: Tom Pfeiffer)
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santorini_d20450.jpg (Photo: Tom Pfeiffer)
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Swim break at Plaka (Photo: Tom Pfeiffer)
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Picknick lunch break (Photo: Tom Pfeiffer)
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santorini_d20487.jpg (Photo: Tom Pfeiffer)
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santorini_d20489.jpg (Photo: Tom Pfeiffer)
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santorini_d20504.jpg (Photo: Tom Pfeiffer)
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santorini_d20533.jpg (Photo: Tom Pfeiffer)
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santorini_d20542.jpg (Photo: Tom Pfeiffer)
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Boat trip with the sudents (Photo: Tom Pfeiffer)
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santorini_d20558.jpg (Photo: Tom Pfeiffer)
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santorini_d20568.jpg (Photo: Tom Pfeiffer)
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santorini_d20570.jpg (Photo: Tom Pfeiffer)
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santorini_d20582.jpg (Photo: Tom Pfeiffer)
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santorini_d20606.jpg (Photo: Tom Pfeiffer)
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santorini_d20609a.jpg (Photo: Tom Pfeiffer)
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santorini_d20641.jpg (Photo: Tom Pfeiffer)
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santorini_d20651.jpg (Photo: Tom Pfeiffer)
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santorini_d20661.jpg (Photo: Tom Pfeiffer)
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