Best caves around Ruesga are found within the Ruesga valley, a significant area for cave exploration in Cantabria. This region is part of the Alto Asón network of natural cave systems, featuring around 74 caves, pit caves, and sinkholes. The area is characterized by impressive underground formations, including vast caverns and towering stalagmites. Many of these sites offer insights into geological processes and, in some cases, historical significance.
Last updated: May 6, 2026
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Today we made the official visit to the cave, it's a pity they didn't let us take photos inside.
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Ramales has well-preserved architecture, with some Indian mansions with beautiful gardens and gates. The Revillagigedo palace (18th century) stands out. However, its most valuable heritage is the group of caves located at the beginning of the century by Alcalde del Río: Covalanas, La Haza, Cullalvera and Sotarriza house magnificent cave paintings inside.
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Legend has it that a French abbot, fleeing the Revolution, came to these places, hiding in the cave. And they say that, from so much crying, his eyes became irritated in such a way that they caused him bad eyesight. But, on one occasion he noticed that by washing them with the waters of the fountain, his eyes healed. Hence the discovery of the virtues of the waters and the name of the place.
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Just amazing and a ride for the whole family! It is a complex of karstic caves 12 km long with cavities of immense dimensions of up to 14 x 28 meters in some sectors. The water has been forming these incredible caves that fortunately today can be visited and explored. It is necessary to purchase tickets online, you can check here: https://cuevas.culturadecantabria.com/cullalvera-esp/
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Also known as "high cairn", the menhir is approximately 3 meters high and is made of sandstone. It is estimated that it was buried by the inhabitants of the area more than 5,000 years ago.
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Nice and quiet path that runs along the river through the foliage of the forest.
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In the middle of the Asón river path, on the way to Arredondo.
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The Cubera cave is located at kilometer 2.8 of the road that goes from Arredondo to La Sia and its mouth is at the same level as the road and it has a spring that drains its waters from the currents of the system that predominates in the cave. zone. This cavity is divided into three zones according to its characteristics. Thus we have: The Fossil Network of the Sima de Cueto which is characterized by having huge corridors in which there is no water around it and the ground is made up of large stone blocks which makes it difficult to transit through this area. Another section is the Intermediate Network which is made up of a large number of caves and labyrinth-like paths, these suppose an excavation after the waters and has several levels, these connect the Sima del Cueto and La Coventosa. The third section in the Coventosa Gallery, which is located next to the previously described labyrinthine area, communicates with almost all the galleries as well as with the Cubera spring. Information taken from: https://www.viajarporcantabria.com/la-cueva-de-cubera/
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The Ruesga valley, part of the Alto Asón network, is a treasure trove of underground formations. You'll find impressive caverns, towering stalagmites, and extensive karstic cave systems. For example, Cullalvera Cave is known for its immense dimensions, with cavities up to 14 x 28 meters.
Yes, the region holds historical importance. The town of Ramales de la Victoria is notable for its group of caves containing magnificent cave paintings. Additionally, the Llusa Cave in Ogarrio gained renown for the discovery of three Bronze Age swords within its chambers, highlighting its archaeological significance.
The Ruesga valley is part of the Alto Asón network, which includes around 74 caves, pit caves, and sinkholes. One of the most extensive is Redaña Cave, stretching over 20 kilometers, making it the second largest in Cantabria and part of the larger Four Valleys cave system.
Yes, several caves offer family-friendly experiences. Cullalvera Cave is accessible and offers an amazing experience for the whole family. The area around Aguanaz River and Frenchman’s Cave also provides a quiet path along the river, suitable for families.
For those new to caving, accessible options like Cullalvera Cave provide a good introduction to the underground world without requiring advanced speleological skills. These typically offer guided tours and well-maintained paths.
Many of Ruesga's caves are primarily for experienced potholers and speleologists due to their complexity and depth. Cubera Cave, for instance, is categorized as challenging, featuring huge corridors with large stone blocks and labyrinth-like paths, making transit difficult.
For some accessible caves like Cullalvera Cave, it is necessary to purchase tickets online in advance. For more advanced or undeveloped caves, permits may be required, especially for speleological exploration. It's advisable to check specific requirements for each cave you plan to visit.
The caves in Ruesga can generally be visited year-round, but the spring and autumn months often offer the most pleasant weather for outdoor activities surrounding the cave visits, such as hiking. Always check specific cave opening times, as some may have seasonal closures.
Inside caves, temperatures are consistently cool, and surfaces can be damp or muddy. It's recommended to wear layers of comfortable clothing, sturdy closed-toe shoes with good grip, and a waterproof jacket. For more adventurous caving, specialized gear like helmets and headlamps will be necessary.
Beyond caving, the Ruesga region offers various outdoor activities. You can explore numerous cycling routes, including challenging road cycling options like the Collados del Asón Park Loop or the Summit of Fuente Las Varas – Ampuero Climb loop. There are also running trails, such as the Asón Waterfall loop. Find more details on these activities in the Road Cycling Routes around Ruesga, Cycling around Ruesga, and Running Trails around Ruesga guides.
The Ruesga valley and nearby settlements like Ramales de la Victoria offer local amenities including cafes and pubs where you can relax and refuel after your cave explorations. These establishments provide opportunities to experience local cuisine and hospitality.
Yes, there are various accommodation options available in and around Ruesga, ranging from rural guesthouses to small hotels. It's advisable to book in advance, especially during peak tourist seasons, to ensure availability.


Extend your search for the best caves by checking out these guides of the top ones around Ruesga: