Caves around Soneja offer a diverse range of subterranean experiences within the surrounding Castellón province. The region is characterized by its rugged terrain and geological formations, providing natural shelters and historical sites. Visitors can explore caves with significant archaeological findings, impressive natural structures, and remnants of past human activity. These sites provide insights into both the natural history and human heritage of the area.
Last updated: June 6, 2026
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Almedíxer is located in the heart of the Sierra de Espadán and was occupied by the Republican army under the command of General Leopoldo Menéndez. The XYZ line (or Matallana line) crossed it, and several historical vestiges remain of it. This XYZ line was made up of a network of trenches and shelters dug to take advantage of the rough terrain of the hills located to the north and northeast of Valencia, which made it difficult to destroy them only by means of air attacks. Given the danger of bombers, frequent during the time of the confrontation between the two armies around the XYZ line, shelters were built where the inhabitants of Almedíjar could hide from the presence of the "Pava", the sound of which alerted the population and preceded the dropping of bombs. The "Pava" was the name by which the Heinkel He 46 combat aircraft, a German monoplane that participated in the bombings carried out during the Civil War, was popularly known. Today, a large part of the defensive constructions of the Civil War, such as parapets or observation points, are preserved. Among these, the shelters of Castillet, Mosquera and Canyar stand out. This last shelter has the typical structure of this type of war construction, since it had three entrances, a corridor that connected them and a rectangular room where people sat down to wait for the bombing to end. Currently, only one entrance and the room where people waited for the bombing to end are preserved.
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Interesting mercury mine known as Els pous de Cantallops (Fontanelles area), with a vertical well about 30 m high, carved into the rock. https://www.mtiblog.com/2012/05/mina-cantallops-alfondeguilla-castellon.html Access to the mine is via the Cantallops Road, which begins in Forcall Gorge and ends in the town of Alfondeguilla.
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Cueva, you have to be careful, from the track you can see the fence, but the crossing is not indicated, but easy to find
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These caves are located just off the path. Most were used to preserve food. They are currently in disuse.
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Also known as the "Crestas del Conde", these are very curious caves that usually go unnoticed unless you look up. Their history is unknown but it is believed that they were used a long time ago for shelter and mainly as a storage place.
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A nice view, also of the rocks.
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Rocky ridges with holes, like small caves. Visually very beautiful and curious mountainous formation.
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Large cave that you can access as it is not fenced.
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The Soneja area, within the Castellón province, offers a diverse range of subterranean experiences. You can find natural caves with impressive geological formations, historical sites like the Cantallops Mine which was a mercury mine, and even ancient shelters used for food preservation or as refuges, such as the Caves just off the path.
Yes, several caves in the region hold historical and archaeological significance. The Civil War shelters near Almedíjar offer a glimpse into the region's recent past. Further afield, the Coves de Sant Josep in La Vall d'Uixó feature prehistoric cave paintings, declared a UNESCO World Heritage Site, and archaeological evidence of human occupation dating back to the Upper Paleolithic period. The Cueva Negra in Montanejos also contains Neolithic remains.
For a unique family experience, the Coves de Sant Josep in La Vall d'Uixó are highly recommended. They offer a captivating boat tour along Europe's longest navigable underground river, showcasing remarkable rock formations and ancient art. The Cueva Negra in Montanejos is also accessible via a hiking trail and is often recommended for families due to its impressive dimensions and historical interest.
The region's caves boast a variety of natural wonders. The Coves de Sant Josep are famous for their extensive underground river and intricate stalactites, stalagmites, and columns. The Cueva de La Tosca in Villahermosa del Río features a beautiful waterfall and a natural pool within the cave, alongside impressive limestone formations. You can also see curious rocky ridges with holes, like those at the Ruins of Las Cuevas Calientes.
The area around Soneja is excellent for outdoor activities. You can find numerous hiking trails, including routes that lead to caves like the Cueva Negra. There are also many running trails and road cycling routes that allow you to explore the rugged terrain and natural beauty of the Castellón province.
The Cueva de Sacañé is a large cave that is not fenced, making it relatively accessible for exploration. For a guided and comfortable experience, the Coves de Sant Josep offer boat tours, which are suitable for most visitors and provide an easy way to see impressive underground formations without extensive walking or climbing.
Many caves, especially those with constant internal temperatures like the Coves de Sant Josep (20ºC year-round), can be visited comfortably throughout the year. However, if you plan to combine your cave visit with hiking or other outdoor activities, spring and autumn generally offer the most pleasant weather in the Castellón province, avoiding the summer heat and potential winter chill.
Yes, the Cantallops Mine is a historical site and cave that features an interesting mercury mine with a vertical well about 30 meters high. It offers a glimpse into the region's mining history. Additionally, the Cueva de las Ferrerías, though somewhat hidden, was artificially enlarged in parts for extracting iron ore.
Absolutely. The Cueva Negra in Montanejos gets its name from the black color of its ceiling, caused by soot from ancient bonfires, creating a distinct visual. The Cueva de La Tosca is notable for its picturesque waterfall and natural pool inside. The Coves de Sant Josep also feature stunningly illuminated geological formations during the boat tour.
Even in summer, the temperature inside caves can be cool and constant, often around 20ºC as in the Coves de Sant Josep. It's advisable to wear comfortable clothing and bring a light jacket or sweater. Sturdy, closed-toe shoes with good grip are essential, especially for caves that involve walking on uneven or damp surfaces.
For detailed information and to book tickets for the Coves de Sant Josep, you can visit their official information page at visitacity.com. It is often recommended to book in advance, especially during peak season.
While popular sites like Coves de Sant Josep can attract many visitors, smaller, more natural caves like the Cueva de Sacañé or the Ruins of Las Cuevas Calientes, which are often found along hiking trails, might offer a more secluded experience. The Cueva de las Ferrerías is also described as somewhat hidden, suggesting a potentially less crowded visit.


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