Best natural monuments around Cercal offer diverse natural features. This region provides opportunities to explore landscapes, including viewpoints and areas of significant biodiversity. Visitors can find natural monuments that showcase geological formations and rich ecosystems. The area is suitable for those interested in natural exploration.
Last updated: June 29, 2026
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The area of the springs, on the Ota River, was once a leisure area for the local population, including the local bathing area in the summer. This site remained natural for a long time after the EPAL was installed, but at a certain point, the intensification of agriculture with the use of chemical fertilizers and pesticides, intensive livestock farming, and urban sewage made the flow from upstream a polluting threat to EPAL's water intakes, and EPAL paved several dozen meters of the river course near the site where it is installed with reinforced concrete.
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The Ota River has its source in the Montejunto mountain range. It flows through the Ota area and empties into the Alenquer River, which in turn meets the Tagus River near Vila Nova da Rainha. At this point the river is close to the village of the same name, Ota.
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The Serra de Montejunto Forest Watch Station can be accessed via a pastoral trail from the picnic park. It offers a beautiful panorama of the region north of the Serra.
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Castro de Pragança, located in Serra de Montejunto, is an archaeological site occupied from the Neolithic period to the Roman period. Discovered in 1893, its study revealed traces from various eras. Its archaeological collection is distributed across several national museums and, despite several excavation campaigns and studies, the Castro is currently in a state of abandonment. Its fortifications date back to the first half of the 3rd millennium BC, and the materials found include weights and metallic artefacts, indicating a prolonged and complex occupation.
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The karst landscape of Montejunto constitutes the extreme southwest of the Estremenho Limestone Massif. Deep valleys, lakes, gravel pits and lapiás are some of the formations found here, testimonies of various geological eras. Water has been the protagonist in erosion phenomena over time. Several deposits of gravel pits result from the cracking of the outcrops caused by the expansion of the water which, when freezing, breaks the rock into small parts. Source: https://montejunto.pt/natureza/paisagens/
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“Paul Natura”, Manique do Intendente https://www.youtube.com/watch?v=9nKhlLvOrJw
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Paúl de Manique do Intendente is an area of around 97,000 square meters that constitutes a very rich natural heritage of great importance in terms of biodiversity, namely in terms of avifauna, already recognized at national level. It is an ecosystem composed of more than 180 species, where you can find 5 "simply unique" species such as the striped tortoise, the common caiman, the otter, the black stork and the reed. The municipality has been focusing on promoting this space, having recently advanced with the installation of an infrastructure for the observation of the fauna and flora of Pául, which aims to promote knowledge, protection and preservation of this unique and so rich ecosystem for the Municipality of Azambuja and for the entire region.
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very pleasant landscape, it is recommended
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The region around Cercal do Alentejo is rich in natural beauty, primarily within the Southwest Alentejo and Vicentine Coast Natural Park and the Serra do Cercal. You can explore diverse landscapes, from the panoramic views of the Serra to the extensive coastal park with its ocean-chiseled bays and beaches. Specific natural monuments include the biodiverse Paúl de Manique do Intendente, known for its avifauna, and the geological formations found at Gravel Bend, a karst landscape with deep valleys and lapiás.
Yes, several natural spots around Cercal are suitable for families. Paúl de Manique do Intendente is categorized as family-friendly, offering an observation space for fauna and flora, which can be engaging for children. The Barragem de Campilhas also provides a freshwater alternative for swimming and relaxation, perfect for a family outing.
The area around Cercal do Alentejo is excellent for various outdoor activities. You can find numerous routes for hiking, cycling, and running. The Serra do Cercal and the Southwest Alentejo and Vicentine Coast Natural Park offer diverse trails, from pastoral paths leading to viewpoints like the Serra de Montejunto Watchtower to coastal routes with stunning scenery.
Absolutely. The region offers a variety of hiking trails. For example, you can explore the area around the Windmills of Serra de Montejunto, which features a trail passing by several recovered windmills. The Serra de Montejunto Watchtower is accessible via a pastoral trail, offering panoramic views. For more options, check out the hiking guide for Cercal.
The best time to visit the natural monuments around Cercal do Alentejo is generally during the spring (March to May) and autumn (September to November). During these seasons, the weather is milder, making it ideal for hiking and exploring the natural parks. The landscapes are vibrant in spring, and the autumn offers pleasant temperatures for outdoor activities.
Yes, the region boasts several excellent viewpoints. The Serra de Montejunto Watchtower provides a beautiful panorama of the northern Serra region. Additionally, the Serra do Cercal itself offers numerous spots with sweeping views of both the coastal Alentejo and the interior plains.
While the Southwest Alentejo and Vicentine Coast Natural Park offers coastal swimming opportunities, for freshwater options, the Barragem de Campilhas is a reservoir located close to Cercal do Alentejo where visitors can swim and relax. The Ota River was historically a local bathing area, though its suitability for swimming now depends on current conditions.
The region is rich in biodiversity, especially in areas like Paúl de Manique do Intendente. This area is recognized for its significant avifauna, with over 180 species, and is home to unique species such as the striped tortoise, common caiman, otter, black stork, and reed. The Southwest Alentejo and Vicentine Coast Natural Park also supports diverse coastal and terrestrial wildlife.
While the natural monuments are primarily valued for their ecological and geological features, some, like the Windmills of Serra de Montejunto, blend natural and historical elements. These recovered windmills offer a glimpse into the region's past agricultural practices within a natural setting. The karst landscape at Gravel Bend also tells a geological history spanning various eras.
Public transport options directly to specific natural monument trailheads can be limited in rural areas like Cercal do Alentejo. It's often advisable to check local bus schedules for routes connecting to nearby towns or consider taxi services for more direct access to trailheads. Planning ahead is recommended for reaching more remote natural sites.
Regulations regarding dogs can vary within natural parks and protected areas. While many trails in the Southwest Alentejo and Vicentine Coast Natural Park and Serra do Cercal are generally dog-friendly, it's usually required to keep dogs on a leash to protect wildlife and ensure the safety of other visitors. Always check specific signage at trailheads for any local restrictions.
While the natural monuments themselves are often in more remote settings, you'll find cafes, pubs, and restaurants in the town of Cercal do Alentejo and other nearby villages. It's a good idea to plan your visit to include stops in these towns for refreshments before or after exploring the natural sites.


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