The Ucieda Beech Forest is a mixed forest in the Cabuérniga region of Cantabria, located within the Saja-Besaya Natural Park. Although the forest ecosystem is notable for its extensive oak groves, it also contains significant stands of beech, along with chestnut and birch trees, in a humid, dense understory characteristic of the Cantabrian mountains. The landscape is characterized by gentle slopes, streams, and small wooden bridges that facilitate exploration of the interior, creating an environment of great scenic and ecological value. From the viewing points, especially at Campa de Ucieda, visitors can observe the density of the deciduous forest and the richness of its understory, with a notable presence of wildlife such as deer, roe deer, and endangered species like the capercaillie and the brown bear. The significance of the beech forest extends beyond its natural value: it is an example of historical forest continuity and the traditional use of the woodland in the region, and it is a protected area within Cantabria’s largest protected area (24,500 hectares). The best time to visit is from late spring through fall, with October and November being particularly special, when the beech foliage turns shades of red, gold, and orange, offering an exceptional palette of colors. From the second half of September through early October, visitors can also hear the deer rut in the surrounding area.