Caves around Molins de Rei are situated near the Llobregat River and the Collserola mountain range, encompassing parts of the Collserola Natural Park. This region offers a blend of natural landscapes and historical sites. The area is characterized by its geological formations and subterranean features, providing opportunities for exploration.
Last updated: May 23, 2026
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Spectacular evidence that is found in this area of the Serral de Can Ros and that above it, we find the mountain of Puig Vicenç. It is worth seeing the curious shapes that the mountain offers.
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Beautiful place with incredible views. Here are the caves of Can Riera, a hidden natural oasis in Torrelles de Llobregat. They are three clay caves with reddish and orange walls, shaped by the erosive action of wind and rain over thousands of years. On weekends there are usually a lot of people visiting the caves, so if you can, try to go during the week.
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The Grott Mine is a tunnel of almost one and a half kilometers that is located in the Sierra de Collserola. Its construction was to carry water from the Pantano de Vallvidrera to the old municipality of Sarrià.
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A strange cave in the side of the trail. It is a popular place for people to visit on a nice trail near Can Coll. I am not sure if the cave actually goes anywhere but the trail at the right time of the day gets beams of light that are magical.
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Can Riera Caves, clayey stone cavities and winding reddish and orange walls. There are three caves that make up this natural wonder, but currently ACCESS IS PROHIBITED.
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According to Sergi Falguera, a collaborator of the Friends of the Geology Museum association, the site began to be exploited in the 17th century, but the most important extractions date back to the 19th and 20th centuries, when it was named Juanita. . It was part of the land of the Masia de Santa Caterina, in the neighborhood of Pedralbes. The mine still has several access tunnels. It is low in water, but it is not drinkable because it carries the acid that is formed from the oxide of minerals
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End station/Exit of an old tunnel built en the early 19C, which was firstly used as the water channel for transporting the reservoir water into the city, then as the end station for the express train taking visitors from the city to the heart of the natural park.
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They are small caves, within the area between Coll del Portell and Carretera de les Aigües, the best access is from the Aigües road and they are also better seen when going to see them, from Coll del Portell you can also go down although the path, being made of very loose slate stone, is more slippery.
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The region around Molins de Rei offers a variety of subterranean features, including natural grottos, historical mines, and man-made tunnels. You can find everything from natural formations like Waterfall and Grotto in Parc de Torreblanca to historical engineering projects such as Mina Grott.
While Molins de Rei itself doesn't have prominent natural caves, the nearby region is home to the spectacular Caves of Montserrat de Collbató. These caves, located within the Montserrat Natural Park, feature impressive speleothems like stalactites and stalagmites, and offer insights into geological processes and prehistoric habitats.
The Caves of Montserrat de Collbató involve some physical activity. The interior route is about 400 meters long, descending almost 20 meters deep, with an accumulated elevation difference of 64 meters, traversed by approximately 250 steps. Additionally, accessing the caves requires climbing 244 exterior steps from the parking area, which takes about 10 minutes.
Inside the Caves of Montserrat de Collbató, the ambient temperature is a constant 14°C with 97% relative humidity. It is highly recommended to wear warm clothing and non-slip sports shoes for comfort and safety during your visit.
Yes, for a family-friendly experience, consider visiting the Waterfall and Grotto in Parc de Torreblanca. This imaginative romantic garden features caves, islands, lakes, and waterfalls. Another option is The Cave Near Can Coll, which is located along a pleasant trail in a forest setting and is popular with visitors.
Absolutely. The region has historical sites like Mina Grott, an almost 1.5-kilometer tunnel in the Sierra de Collserola originally built to transport water. Another historical site is the Juanita Mine, which was exploited for minerals from the 17th to 20th centuries.
For a more challenging experience, the Juanita Mine is noted as challenging, with trails that can be loose stone. The Can Riera Caves are also described as challenging due to their terrain, though access is currently prohibited.
The area around Molins de Rei, including the Collserola Natural Park, offers various outdoor activities. You can find numerous trails for mountain biking, running, and cycling. Explore MTB Trails, Running Trails, or Cycling routes in the region.
For the Caves of Montserrat de Collbató, it is highly recommended to make a prior reservation, and tickets are sold online in advance. This ensures your entry and helps manage visitor flow.
Visitors appreciate the unique blend of natural beauty and historical significance. Highlights like the Waterfall and Grotto in Parc de Torreblanca are loved for their imaginative design and lush vegetation, while The Cave Near Can Coll is noted for its curious entrance and exit along a scenic trail.
Yes, the Can Riera Caves, though currently inaccessible, are known for offering incredible views of the surrounding landscape. The area around Molins de Rei, particularly within the Collserola Natural Park, also features various natural landmarks and viewpoints.
Guided tours of the Caves of Montserrat de Collbató typically last about an hour. This includes exploration of the cave passages and a video mapping experience that enhances the visit.


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