Best caves around Castellar Del Vallès are primarily natural rock formations and historical cavities found within the Sant Llorenç del Munt massif. This region, part of Vallès Occidental, is characterized by its unique conglomerate geology, offering a landscape of rock shelters and natural monuments. The area provides opportunities for exploring geological features and sites with historical significance, often integrated into hiking trails. These formations are integral to the natural and cultural heritage of the Castellar Del Vallès surroundings.
Last updated: June 29, 2026
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The Cau dels Emboscats is one of the cavities that served as a refuge during the civil war. Specifically, several people hid from Sant Llorenç Savall. The situation of the cave was kept secret for many years after the end of the conflict. It wasn't until October 28, 1956, that Biel Dalmau, from the Mas de les Oliveres, explained its location and history to Josep Maria Torras Homet. The mouth is very irregular. It opens in the form of a chasm that falls on an inclined floor. Then there is a 2 meter ledge leading to the main gallery parallel to the cliff and about 20 meters long. In the middle of the gallery there is a large window that forms a kind of side room poured into the steeply sloping cliff. The cavity ends in an elbow and a small room, where small stalactite formations and parietal crusts can be observed.
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The Sescorts caves, also called Les Corts and Los Estables, are located below the Morral del Drac, on the path that goes from the Estenalles pass to La Mola. The caves are close to the Coma de l'Abella cliff, at the foot of the Petanta Rock. They were used a few years ago to keep cattle and we can still find the roof quite smoky from the fire on the ground that they made. There are 7 small cavities with an approximate length of 25 meters. From inside there are views of the monastery of Sant Llorenç del Munt, at the top of the summit of La Mola.
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The hermitage of Santa Agnès is a chapel built under the rock, near the monastery of Sant Llorenç del Munt, of which it depended. It is located in the cave that bears his name. It is documented since the 14th century and was worshiped until the end of the 18th century. It is one of the architectural vestiges in Sant Llorenç del Munt park that remain today. It is in the Santa Agnès channel on the north side of La Mola, approximately 900 meters above sea level. Traditionally it has been said that it belonged to a convent of religious women although little is known about the congregation to which they belonged. As a point of interest we find sinks inside the cave that have been used as a fountain and cistern until today, attached to the same balma where the chapel is located. This church was built in the medieval period in the Gothic style, in the form of a small rectangular nave with a pointed vault, reinforced with two lateral arches. The part of the head pours into the living rock, leaving an excavated space where there was once an altar. The existence of the hermitage has been documented since the 14th century and it is known that ceremonies were held until the 18th century.
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It is located on the northern slope of La Mola (1,103.3 m), the highest point of the massif, at a distance of about 550 meters from the summit. It is in the pass between the summit of La Mola and the hill of Griera (1,002.4), at the beginning of the Pagès ridge, which forms the backbone of the massif of Sant Llorenç del Munt up to the pass of Eres, southeast of Montcau. It has an elevation of 980.2 m. It is in the municipality of Matadepera, in Vallès Occidental. On the south-west side of the pass where it is located there is the Coma de l'Abella canal and on the north-east side there is the Santa Agnès canal, where the chapel of Santa Agnès is located. It is a monolith of conglomerate with a carbonate composition formed by two large blocks of about 32 meters high, separated at their base, where they leave a large opening. It is the scene of one of the most remote traditional legends of Sant Llorenç del Munt, the legend of the dragon of Sant Llorenç. The first ascent was made on February 11, 1923 by members of the Terrassa Hiking Center.
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The Morral del Dragon or Dragon Cave, is a monolith in the Sant Llorenç del Munt massif. It is located on the north slope of La Mola (1,103.03m), the highest point of the massif, at a distance of about 550 meters from the top. It is on the hill between the top of La Mola and the En Griera hill (1,1002.4 m), at the beginning of the El Pagès ridge, which runs through the Sant Llorenç del Munt massif up to the Eres hill, at southwest of Montcau. It has an elevation of 980.2 m. It is in the municipality of Matadepera, in the Vallès Occidental. On the southwest side of the hill where the Coma de l’Abella channel is located, and on the northeast side is the Santa Agnès channel. Where is the hermitage of Santa Agnès.
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It has 2 irons and a handmade ladder to go down
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The 'caves' around Castellar del Vallès primarily refer to natural rock formations, rock shelters, and historical cavities within the Sant Llorenç del Munt massif. These are often integrated into hiking trails and offer geological and historical interest. While not traditional underground cave systems with extensive stalactites and stalagmites, the region features unique conglomerate geology.
Yes, the area is rich in historical cavities. For instance, The Blood Hospital is a large triangular ravine that served as a hospital during the Carlist wars. Another significant site is the Hermitage of Santa Agnès, a chapel built under a rock, documented since the 14th century. The Cau dels Emboscats Cave also served as a refuge during the Civil War.
One of the most popular natural monuments is Morral del Drac, formed by two large blocks of conglomerate and associated with a local legend. Below it, you'll find the Sescorts Caves, a series of small cavities offering views of the Sant Llorenç del Munt monastery.
While the guide focuses on rock formations and historical cavities, the broader Castellar del Vallès area, particularly around Sant Feliu del Racó, offers natural spots like Gorgs del Turell and Gorg del Fitó. These are natural pools with clear water, popular for hiking and enjoying nature, and often feature easy to moderate circular routes suitable for families.
The terrain around Castellar del Vallès, especially in the Sant Llorenç del Munt massif, is characterized by conglomerate geology. Trails leading to these formations can range from intermediate to challenging, often involving ascents and rocky paths. Some highlights like Morral del Drac and Cau dels Emboscats Cave are rated as challenging, while others like The Blood Hospital and Sescorts Caves are intermediate.
The region around Castellar del Vallès offers a variety of outdoor activities. You can find numerous mountain hikes, including challenging routes like the Mountaineering loop from Sant Llorenç del Munt. There are also options for cycling and running trails, allowing you to explore the natural beauty of the Vallès Occidental region.
Access to some of the more remote natural formations and historical cavities in the Sant Llorenç del Munt massif can be challenging via public transport. It's often recommended to use a car to reach trailheads, though some areas might be accessible by local bus services to nearby towns, followed by a hike. Planning your route in advance is advisable.
Spring and autumn generally offer the most pleasant weather for exploring the natural formations and hiking trails around Castellar del Vallès. Temperatures are milder, and the natural landscape is vibrant. Summer can be hot, making early morning or late afternoon visits preferable, while winter can bring cooler temperatures, especially at higher elevations.
Many of these sites offer excellent scenic views. For example, the Sescorts Caves provide views of the Sant Llorenç del Munt monastery. The strategic location of The Blood Hospital also offered an excellent aerial view of the Torrent del Figueret and surrounding areas.
Given the rocky terrain and hiking involved, sturdy hiking boots are essential. Layered clothing is recommended to adapt to changing temperatures, especially when exploring formations at different elevations. Bringing water, snacks, and a map or GPS device is also advisable for safety and navigation.
While the immediate vicinity of some remote rock formations might not have direct amenities, the towns and villages surrounding Castellar del Vallès, such as Castellar del Vallès itself or Sant Feliu del Racó, offer various cafes, restaurants, and accommodation options where you can refresh before or after your exploration.


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