Known since ancient times, a document of 1163 from King Alfons I already mentions the spelunca cremata. It appears cited in all the old speleological catalogues and everything indicates that for a long time there was a stone wall that served to use it as a dwelling or as a fortification.

On 15 September 1910 it is visited by Faura, Rosals and Llongueres. Faura says textually: Es un mal abrigo, habitado por pobres errantes. En el fondo hay una muy reducida sala. Carece de interés científico.

In fact it went unnoticed until, when the area was urbanised, the owner of the plot where it is located began to excavate (1963) the sediments at the bottom of the entrance gallery until finding the continuation and began to fix up its interior, with an initial idea of installing a discotheque, which he soon gave up. The owner, Mr. Navarro (Transports Navarro, of Sants) gave notice to members of the SIRE – UEC Sants who visited and surveyed it (the survey was lost) in January 1967. Subsequently, during the work of preparing the speleological catalogue of the Garraf, Joan Borràs and colleagues from the GES – CMB surveyed it again (May 1974) and call it Cova Fumada de Vallbona.