This is one of the longest tunnels scroll Etna. It penetrates into the cave through an opening in the ceiling along a steep slope formed by material collapse. In the south wall of this hillside overlooking a small secondary cavity consists of a short tunnel followed by a 2 m high chimney. Above the main gallery there is also a second long tunnel about 10 m wide and 2 m high at the beginning about 1.5; this gallery is not overlooking the main gallery, but is accessible from the lava field above. The floor is made from lava to the joint surface that sounds empty in step. The main part of the Cave of the Raspberries has two galleries, one downstream of the entrance, about 100 m long, affected by numerous collapses, the second upstream input, 300 m long in the best condition. The floor of the tunnel upstream consists of lava scoriae fragmentary or welded. Somewhere they are piled up large blocks of collapse. A collapse are also due the two openings on the ceiling that light up the gallery. The most downstream is a convenient second entrance. The most upstream is constituted by two holes in the ceiling; in correspondence of them there is a short tunnel located at a higher level, not easy to access. The section of the cave is mostly semi-circular, but in some stretch elliptical with the major axis horizontal. Stalactites to recast abound everywhere, as well as scratches and cords overlapping horizontal walls. There are many fractures on the vault. The main gallery presents the double side of the lower section; by the shortest of them departs a narrow passage that opens outside. Because of the different openings this cavity is very windy. Mungibeddu.it
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