The Cuevas del Águila is a visitable karst cave excavated in crystalline limestone in the surroundings of the Sierra de Gredos, in the Tiétar valley. The touristic route reaches approximately 1,000 meters and descends about 50 meters below the surface, with large rooms, corridors and abundant formations of stalactites, stalagmites, lava flows and other calcareous deposits. The interior temperature remains stable and the humidity is high, which explains both its conservation and the sensation of an active and lively cave. From the visit, one walks through a set of very well conditioned galleries, with a central room of great volume and high ceilings that concentrate the most striking forms. The directed light allows us to appreciate the colors and textures of the concretions, without losing the geological reading of the whole. The interest of the site is not in an open exterior landscape, but in the subway experience and in the reading of a karst relief that contrasts with the nearby granitic environment. The cave is one of the best known tourist references in the province of Avila and is mentioned by institutional and informative media as a highlight of the local geological heritage. Its modern discovery dates back to 1963 and since then it has become a classic visit in the south of Ávila. It is advisable to go at quiet hours to avoid groups and take better advantage of the guided visit; at any time of the year the interior maintains stable conditions, so the interest is quite constant.
