The Serra da Lastra mountain range is the natural eastern boundary of Galicia. Here, holm oaks have their own history, one that speaks of a Mediterranean climate and the limestone soils it needs to thrive, which is why it is scarce in the rest of the Galician territory. The journey through local roads connecting small inland or bordering towns is a treat in itself to appreciate the beauty of the landscape. The park includes areas with restricted access, harboring the largest network of underground cavities in the Galician territory. Some are of considerable length, like the Cova da Zorra (600 meters), and landmarks in Galician spelunking such as the Pala de Xilberte, the Pala do Pombo, the one in Trasmonte, or the Pala de Tralapala. With its 3,151.67 hectares of surface area, Enciña da Lastra is the youngest of the six natural parks in Galicia.