Furna do Enxofre
Caldeira da Ilha Graciosa - Portugal
Phone: +351 295 712 124 - Fax: +351 295 712 124
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The Furna do Enxofre, situated in the south-eastern part of the Caldeira da Ilha Graciosa, is an impressive lava cave, whose main feature is its perfect dome-shaped roof. The inside of the cave is reached via a tower roughly 37 metres high and containing a spiral staircase with 183 steps. It was explored in the nineteenth century by such illustrious visitors as Prince Albert of Monaco and the naturalists Fouqué and Hartung. The cave is considered unique in the international panorama of volcanism and speleological research. Inside is a lake of cold, sulphurous water.
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