Yellow and pink circle. (Photo: Tom Pfeiffer)
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The term for all fine-grained volcanic products fragmented during explosive eruptions.
: The Azores, a cluster of volcanic islands in the Atlantic Ocean, are famous for their very pleasant climate, breathtaking green and unspoiled landscapes and nature. They also have deep history and you'll find warm hospitality. Our new tour, guided by a photographer and volcanologist, will lead to five islands: Sao Miguel, Faial, Terceira, Pico and Flores - each with its distinct character to discover.