The cave was investigated by Abbe Henri Breuil, a French-Catholic priest, archaeologist, anthropologist, ethnologist, and geologist, who had come to Spain following a report by Colonel Verner of its existence in Benaoján, near Ronda.

[3] Both skeletons and pottery present indicated that the cave must have a better entrance and dating indicated that the remains went back to the Neolithic.

Some of the wall decorations and skeletons were thought to be more recent and to have resulted from people who got lost in the cave.

The same man made a discovery of an unknown chamber that gave access to galleries (Las Galerias Nuevas) which contained stalactites.

[2] The cave today is operated by Bullón's descendants who limit groups to no more than 20 people—as of 2017 reservations must be made in advance.