Cueva de Santimamiñe Monument · Kortezubi, Gernika-Bermeo, Bizkaia Cave discovered on August 11, 1916 by the composer Jesús Guridi, together with some boys who had already located the paintings that same year. It preserves 47 Magdalenian rock paintings (from between 14,000 and 9,000 years ago), monochrome in charcoal, depicting 32 bison, seven caprids, six horses, a deer and a bear. It was declared a Bien de Interés Cultural on July 17, 1984, and in 2008 it was included in the UNESCO World Heritage collective designation "Cave of Altamira and Paleolithic Cave Art of Northern Spain". Closed to the public since 2006 for conservation; access is limited to researchers, with a 3D virtual experience available at the nearby interpretation center. 11 de agosto de 1916 (descubrimiento); 17 de julio de 1984 (BIC); 2008 (Patrimonio Mundial UNESCO); 2006 (cierre al público) Photo: ETOR Entziklopedia (CC BY 3.0) What to see and do in Kortezubi