Collados del Asón is a natural park situated in Cantabria, Spain. It consists of high rocks, typical mountain paths and is covered in green forest. The area is very unpopulated which makes the natural park even more serene. We made a hike of 13 km and crossed nobody on our way. The paths are clear but not always well signed. We recommend to use for instance Komoot to follow a prepared hike. Make sure to put your hiking map offline because in some parts, like in between the high rocks, you have no connection. Some paths get very technical so a little bit of hiking experience is a must.