Impressive grotto through which water emanates naturally and from which the Arroyo del Caño starts. An official hiking route starts from Bolaños de Cva., along the arranged road to the Virgen del Monte, and from there it continues to the Sierra de Moral. From Bolaños there are 30km there and back, and 20km if you do it from the Virgen del Monte (approximately). It is a somewhat long walk to walk, so I have done it by bike but knowing that the paths that go up to the Caño are narrow, with stones and quite steep. They cannot be done by bike, but I think it is a good option to do the route from Bolaños by bike if you assume that you will have to pick it up a few times and walk with it for a few kilometers along the crest of the mountain range. What an adventure 😅
At the mouth of the cave you can see Bolaños and Almagro.
In summer there is only a puddle of water, but it is spectacular. I suppose that in spring it will take a little more water.