This cave, not known to many, is visible as a large fissure on the rocky area between Tamborio and Sementella. The access begins just before the Natural Arch and is a very rugged path not accessible to many. The exposure to the south makes this cavity very dry, for this reason, it is thought that the etymological derivation of the name is attributable to an old place used to dry hay, although , the difficulty in reaching it from little credibility to this hypothesis.