Silveira
Silveira, Lajes, Pico - Portugal
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Silveira is noted for being the only source of mineral water in the island. From volcanic eruptions many thousands of years ago, the cooling of lava and the escape of volcanic gases caused the appearance of cavities that take the form of grottoes covered with volcanic stalactites and stalagmites or long corridors stretching into the depths of the earth. Deserving of a visit are the long galleries and diverse of Silveira. It is best to view these tunnels with a guide.
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