Best castles around Sant Boi de Llobregat are situated in a region characterized by its historical significance and diverse landscape, from the Llobregat river delta to the Collserola and Garraf mountain ranges. The area features sites with ancient origins, some dating back to the 9th century, reflecting centuries of strategic importance. Visitors can explore historical castle sites, some of which have been transformed or are preserved as ruins, offering views of the surrounding natural environment. This region provides a blend…
Last updated: July 17, 2026
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Beautiful castle, you have a wide view over the city, the landscape, and the sea. Can really be recommended.
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Of the 120 cannons that once served to defend the city, only a few remain today
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More than 1,000 years of history Although recent archaeological studies testify to the occupation of the Eramprunyà cliff since prehistoric and Iberian times, the history of the castle begins in the 9th century. In 801 the Franks took the city of Barcelona from the Saracens, who had to retreat to the right bank of the Llobregat. The defense of Barcelona required the protection of the flat area, but also the entire lower part of the Llobregat valley, from Martorell to the sea, as it is a natural area of access to Barcelona. It was also necessary to control the entire coastline and the paths of the Garraf. Some of the castles that were built at this time were those of Cervelló, Castellví de Rosanes, Sant Boi, Corbera, Castelldefels and Eramprunyà. For visits Second Sunday of the month, at 10 am Meeting point at the Hermitage of Bruguers. Source and for + info https://www.patrimonigava.cat/espais-patrimonials/castell-deramprunya
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This castle is located near Sant Miquel d'Eramprunyà and is located on an elevated part, between the slopes of the Garraf with magnificent views over the Llobregat delta.
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On a small hill, above the town of Molins de Rei, are the ruins of the castle that was built in the 14th century on the remains of an old circular defensive tower, called Guadall or Guadallo, of Visigothic origin (8th century) , that is to say, pre-Romanesque. This is confirmed by the remains of a wall lock that used an opus spicatum facing characteristic of that period. On the west facade stands a three-tiered tower where the door and two openings are preserved, one of which is currently reconstructed. There are also remains of the trapezoidal plant, a small tower attached to the rock, the walls of the Guadall tower and the remains of a large cistern, partially drilled into the rock and protected by a barrel vault (10th and 12th centuries ).
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Because it is a very quick way to get away from the city and integrate into nature without making a great effort.
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Francoist troops occupied Barcelona on January 26, 1939 with the 105th Division of the Moroccan Army Corps in the vanguard and soon after they would enter the Castle. In this way, the Castle became part of the national side and temporarily became a place of concentration, with thousands of prisoner soldiers, who would later be transferred to the Horta concentration camp. The case that achieved, however, more political and symbolic significance was that of the imprisonment and execution of President Lluís Companys. On August 13, 1940, he was arrested in La Baule, in France occupied by the German army, by order of the Spanish authorities, and imprisoned in the Parisian prison of La Santé, from where he was handed over to the 'Franco Spain. After a few days in the General Directorate of Security in Madrid, he was transferred to Barcelona and entered Montjuïc, where he remained locked up and isolated from the other prisoners, in the military chaplain's cells located in the Castle's courtyard . On October 3, a judicial process was initiated that was concluded in just ten days, so that on October 14, 1940, a very summary war council took place that lasted less than an hour and ended with death sentence. The facts that were imputed to him were opposing the Uprising and tolerating crimes in the rear, in addition to military rebellion. On October 15, at six in the morning, he was shot in the moat of Santa Eulàlia. The Castle was deeply marked by this crime. This character of a military prison was maintained until 1960.
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The best view of Barcelona city and port
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The castles in this region boast a rich history, with some sites dating back to the 9th century. For instance, the original Castell de Sant Boi, now home to Hotel El Castell, was likely built by Muslims around 801. Eramprunyà Castle also has over 1,000 years of history, playing a strategic role in the defense of Barcelona against Saracen incursions. These sites reflect centuries of changing ownership and strategic importance in the Llobregat valley.
Yes, several castles offer magnificent panoramic views. Cannon at Montjuïc Castle provides a superb vantage point over the sea, port, and city of Barcelona. The Castellciuró Ruins offer great views over the Baix Llobregat and even Montserrat. Similarly, Eramprunyà Castle, situated on the slopes of the Garraf, provides magnificent views over the Llobregat delta.
The region around Sant Boi de Llobregat offers various outdoor activities. You can find numerous road cycling routes, such as the "Baix Llobregat Agricultural Park Loop" or the "Garraf Coastal Road – Camino del Mar loop." For gravel biking, explore routes like the "Llobregat Delta – Can Camins Beach loop." Mountain biking enthusiasts can enjoy trails like the "Sant Boi - Begues Trails Loop" or the "Espacios Naturales delta del Llobregat - circular." You can find more details on these routes in the Road Cycling Routes, Gravel Biking, and MTB Trails guides for the area.
Yes, Cannon at Montjuïc Castle is considered family-friendly, offering historical exploration alongside impressive views. Additionally, the Castell de l'Oreneta Park, which incorporates the remains of a castle, is a large forest area with rest areas, children's play zones, and picnic spots, making it ideal for families.
The castles are often nestled within or near significant natural landscapes. For example, Castellciuró Ruins are located in the Collserola mountain range, offering views of the Llobregat river. Eramprunyà Castle is situated between the slopes of the Garraf, providing views over the Llobregat delta. The region itself spans from the Llobregat river delta to the Collserola and Garraf mountain ranges, offering a blend of historical sites and natural beauty.
The original Castell de Sant Boi, historically significant and documented as early as 965, is no longer standing as a preserved ruin or museum in its traditional form. The site is now home to the Hotel El Castell, which was converted from a large house built on the castle's foundations in the 19th century. Visitors can still appreciate the strategic hilltop location and historical context.
While specific public transport details for each ruin vary, the Hotel El Castell (on the site of the original Castell de Sant Boi) is conveniently located only a 10-minute drive from Barcelona El Prat Airport and has good access to Barcelona city center. For other ruins like Castellciuró Ruins, access is generally considered easy, often with possibilities to follow other directions from there, implying good road access. It's advisable to check local transport options for specific ruins before your visit.
The region generally enjoys a Mediterranean climate, making spring (April-May) and autumn (September-October) ideal for visiting. During these seasons, the weather is typically mild and pleasant for exploring historical sites and enjoying outdoor activities without the intense heat of summer or the cooler, wetter days of winter. This allows for comfortable walks and clear views from the castle viewpoints.
For Eramprunyà Castle, visits are typically offered on the second Sunday of the month at 10 am, with a meeting point at the Hermitage of Bruguers. For other sites, it's recommended to check local tourist information or the specific highlight's website for current tour availability and booking details.
While not a fully preserved castle, the historical site of the original Castell de Sant Boi, now home to Hotel El Castell, offers a unique blend of history and modern comfort away from typical tourist crowds. The Castellciuró Ruins, though restored, provide a glimpse into ancient fortifications in a serene setting within the Collserola mountain range, often appreciated for its quiet beauty and views.
Yes, the area around Sant Boi de Llobregat offers various options. The Hotel El Castell, located on the site of the original Castell de Sant Boi, features the Blanc&Negre restaurant serving Catalan cuisine and a café, with meals available on the terrace during summer. For other castle sites, nearby towns like Molins de Rey (near Castellciuró) and Gavà (near Eramprunyà Castle) provide cafes, pubs, and accommodation options.
The Castell de l'Oreneta Park is a large 17-hectare forest area that connects Barcelona with the Collserola mountain range. It incorporates the remains of a castle, La Oreneta, and offers improved road networks, rest areas, children's play zones, and picnic spots. From its highest part, visitors can enjoy exceptional panoramic views of Barcelona, from Sant Adrià de Besòs to Prat de Llobregat, making it a unique urban green space with historical ties.


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