Located 850 meters from Cabo Carvoeiro on the south coast of Peniche, also known in Peniche as Cova Dominique, it remains one of the most important archaeological sites in Portuguese prehistory. Explored by Nery Delgado, who came to present works and conclusions at the Lisbon Congress of 1880, this cave that is about 15 meters above sea level was occupied by Paleolithic Man as well as by certain wild animals such as bears or wolves, who there they carried their prey, as did the man.

This cave has revealed traces of human presence since the time of Neanderthals (around 30,000 years ago). It is the most western Neanderthal site in Europe and the world. Due to its history and characteristics, the Furninha cave is a heritage of considerable importance.