Graciosa Geological Tour

The Geological Tour of Graciosa Island allows you to learn about the history of the land, which is revealed through stunning landscapes and unique natural formations. This island, classified as a Biosphere Reserve, is a veritable geological laboratory, perfect for nature and science lovers. It includes visits to caves; impressive lava tubes and the Caldeira da Graciosa Natural Monument - the Furna do Enxofre.