Armintxe Cave in Lekeitio is an important Paleolithic rock art site, estimated to date from between 12,000 and 14,500 years ago.
Wikipedia https://en.wikipedia.org/wiki/Armintxe_Cave
Address 10 Calle de Aldamiz Etxebarria, Lekeitio 48280, Spain
Coordinates 43°21'44.516" N -2°30'33.364" E