Best natural monuments around Alandroal showcase the Alentejo region's diverse landscapes and ancient heritage. This area, while not home to large natural parks, features significant natural interests and historical sites. Visitors can explore geological formations, riverine environments, and megalithic structures that reflect a rich past. The natural monuments here offer insights into both the region's natural beauty and its long history of human settlement.
Last updated: July 6, 2026
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At the top of the Serra d’Ossa, at an altitude of 650 metres, stands the Alto de São Gens. Among the ruins of the old chapel dedicated to the saint, memories of an occupation that dates back more than three millennia, to the Bronze and Iron Ages, echo. This archaeological site, shrouded in legend and symbolism, was later associated by the monks of the Congregation of São Paulo with the mythical Mount of Venus, the refuge of Viriato, the legendary Lusitanian leader who, according to tradition, descended from here to confront the Romans.
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The oldest menhirs (standing stones) were erected in Portugal between 5000 and 4000 BC. The age of this menhir is unclear.
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What's particularly interesting about the Xerez stone group is its square shape. The menhir is located in the center, surrounded by smaller stones. A concrete path leads from the Orada Monastery to it—is this really necessary? A regular path would certainly have sufficed. The entire area appears very neglected.
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At the top of the Serra d’Ossa, at an altitude of 650 metres, stands the Alto de São Gens. Among the ruins of the old chapel dedicated to the saint, memories of an occupation that dates back more than three millennia, to the Bronze and Iron Ages, echo. This archaeological site, shrouded in legend and symbolism, was later associated by the monks of the Congregation of São Paulo with the mythical Mount of Venus, the refuge of Viriato, the legendary Lusitanian leader who, according to tradition, descended from here to confront the Romans.
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The Anta da Candeeira, or Anta da Herdade da Candeeira, is one of the many megalithic remains that dot the Alentejo, more precisely in the district of Évora. In the Portuguese lexicon, “anta” refers to the approximately five thousand megalithic monuments (or dolmens) spread across the west of the Iberian Peninsula. These enigmatic stone structures were built during the Neolithic period by communities that inherited the Cardial or Impressa cultures. Silent testimonies of a distant past, they continue to fascinate those who venture into these lands of history and stone.
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The Xerez Cromlech stands on open land, close to the Convent of Orada, and with a view of the walls of Monsaraz. It is the second "home" to prevent it from being submerged by the Alqueva dam. The 55 granite menhirs of the Xerez Cromlech have already been to other places because they were moved here, to the vicinity of the village of Telheiro, in 2004, to prevent submersion by the Alqueva dam. The cromlech was in front of Monte Xerez, close to a dolmen, about 5km from Monsaraz.
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The Menhir do Outeiro (in Portuguese: Menir do Outeiro), also known as Menhir no Sítio do Penedo Comprido, is a megalith located halfway between the villages of Outeiro and Barrada, in the municipality of Reguengos de Monsaraz, in the district of Évora, in the Alentejo region of Portugal, just a few kilometres from the Portuguese-Spanish border. This menhir was discovered in 1969 by Henrique Leonor Pina and José Pires Gonçalves and, on their initiative, it was raised again around 1970. The menhir was classified as a Portuguese National Monument in 1971.
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The Menhir of Abelhoa, also known as Menhir of Bulhoa, is a granite menhir located near Monsaraz, in the municipality of Reguengos de Monsaraz, district of Évora, in Portugal. In 1971 it was classified as a National Monument.
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Alandroal offers a diverse range of natural monuments, primarily focusing on ancient geological formations and significant historical sites. You can find impressive megalithic structures like the Cromlech of Xerez and the Menir da Bulhoa, as well as natural viewpoints such as Alto de São Gens. The region also features picturesque riverine environments along the Guadiana River and the Serra d'Ossa mountain range.
Yes, several natural monuments in Alandroal are suitable for families. The Cromlech of Xerez and the Menir da Bulhoa are both classified as family-friendly and offer an engaging glimpse into ancient history. Additionally, the Serra d'Ossa Walkways provide an accessible path through a beautiful valley, ideal for children due to minimal elevation changes.
Alandroal is rich in historical natural monuments. The Cromlech of Xerez, a square stone circle of 55 granite menhirs, and the Menir da Bulhoa, one of Portugal's oldest standing stones, are prime examples of megalithic culture. The Alto de São Gens summit also holds archaeological significance with ruins dating back over three millennia.
The Alandroal area is renowned for its megalithic heritage. You can visit the Cromlech of Xerez, a unique square formation of 55 granite menhirs. Another significant site is the Menir da Bulhoa, a granite menhir classified as a National Monument. Don't miss the Menhir of Outeiro and the Anta da Candeeira, both offering insights into the Neolithic period.
Yes, the Serra d'Ossa Walkways are a great option for an accessible experience. These 1.5 km wooden walkways (3 km round trip) run along the Ribeira do Monte Virgem, offering an easy path through schist cliffs and lush valleys, suitable for most visitors.
The region around Alandroal offers various outdoor activities. You can enjoy water sports like canoeing, stand-up paddleboarding, and fishing at Lucefécit Dam or along the Guadiana River. For land-based activities, there are numerous routes for running, gravel biking, and road cycling. Explore options like the Serra d'Ossa Loop for gravel biking or the Loop from Redondo to Alandroal for road cycling on the Gravel biking around Alandroal guide or the Road Cycling Routes around Alandroal guide.
Absolutely. The Serra d'Ossa area provides excellent opportunities for walks and trails. For more structured routes, you can find running trails around Alandroal, including longer loops from Monsaraz or Redondo. Check out the Running Trails around Alandroal guide for detailed options.
Beyond the ancient monuments, Alandroal showcases unique natural features. The Serra d'Ossa mountain range offers stunning views and diverse ecology, including cork oaks and eucalyptus trees. The Guadiana River, forming part of the vast Alqueva Lake, presents an original riverside landscape of holm oaks and cork oaks, perfect for tranquil relaxation and stargazing as part of the Dark Sky Reserve.
The Alentejo region generally experiences hot, dry summers and mild winters. Spring (March to May) and Autumn (September to November) are often considered the best times to visit, offering pleasant temperatures for exploring outdoor sites and trails without the intense summer heat.
Visitors frequently appreciate the historical depth and unique character of Alandroal's natural monuments. The Cromlech of Xerez is often highlighted for its surprising square stone circle formation and interesting markings. The serene beauty of the Alentejo landscape, combined with the ancient heritage, provides a captivating experience for nature lovers and history enthusiasts alike.
Yes, the Guadiana River area, particularly near the Alandroal Nautical Station, is part of the Dark Sky Reserve, a UNESCO Starlight Destination. This makes it an exceptional spot for stargazing due to minimal light pollution, offering a truly natural and awe-inspiring experience.
The Lucefécit Dam and Stream are notable for both their natural beauty and profound historical significance. The dam provides opportunities for water activities and picnics in a typical Alentejo landscape. The area is also home to an ancient pagan sanctuary, Rocha da Mina, and archaeological artifacts dating back to the 3rd century BC, offering a fascinating journey through time and belief systems.


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