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Alcaria

Top 18 Natural Monuments around Alcaria

Best natural monuments around Alcaria are situated within the Natural Park of Aire and Candeeiros Mountain, a region known for its distinctive karst landscape. This area features impressive geological formations, including extensive cave systems and natural depressions sculpted by water erosion. Alcaria serves as a gateway to exploring these diverse natural attractions. The landscape offers a variety of natural monuments for discovery.

Best natural monuments around Alcaria

  • The most popular natural monuments is Buraco Roto Cave-Necropolis, a cave that is a necropolis hidden in a lush forest. In rainy months, it forms an impressive waterfall.
  • Another must-see spot is Pia da Ovelha Cave, an imposing natural cavity. This site features a sink carved under a stalactite and historically served as a drinking trough for cattle.
  • Visitors also love Fórnea Waterfall, a waterfall located in the heart of the Serras de Aire e Candeeiros Natural Park. It is fed by the Fórnea Stream, which originates from the Cova da Velha cave.
  • Alcaria is known for its caves, waterfalls, and hiking trails. The region offers a variety of natural monuments to see and explore, including geological formations and natural springs.
  • The natural monuments around Alcaria are appreciated by the komoot community, with 47 upvotes and 36 photos shared across the highlights.

Last updated: June 29, 2026

Fórnea Waterfall

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Waterfall and Fórnea, beaatifull place to go by wike, or walking with the family, specially after some rains, to see the waterfall with water

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Buraco Roto Cave-Necropolis

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The Buraco Roto is a necropolis of singular beauty, hidden in a lush forest of oak, laurel and cork oak trees. In the rainy months, it becomes a natural spectacle, spilling large quantities of water and forming an impressive waterfall.

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It was more by chance that we came across the hiking trail PR3. A very nice tour with many natural spectacles. However, we started from the parking space in Sao Bento and then followed the signs in the direction of Sao Bento. At the intersection of Costa de Alvados, we decided to stay up there on the heights. The PR3 path described starts in Alvados and ends there. However, since it is an estimated 150 meters down to Alvados and then up again, we stayed up. The view from up here is fantastic.

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Pia da Ovelha Cave

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Pia da Ovelha, point of interest inserted in the PR2 BTL trail

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Cova da Velha

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The Fórnea stream originates here, in the Cova da Velha cave, where a natural spring flows almost all year round. However, due to the limestone soil, the water easily infiltrates, traveling through underground galleries instead of flowing freely on the surface. As a result, the stunning Fórnea waterfall only reveals its full grandeur after days of heavy rain.

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Tips from the Community

Ukon64
May 26, 2026, Buraco Roto Cave-Necropolis

Although the tour is quite short, it thrilled us. On warm days (it was 32 degrees for us) the tour was sweaty. Currently, the authorities have closed the path, a short section of 15 meters has slipped. However, the spot can be easily and safely bypassed.

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The Fórnea stream originates here, in the Cova da Velha cave, where a natural spring flows almost all year round. However, due to the limestone soil, the water easily infiltrates, traveling through underground galleries instead of flowing freely on the surface. As a result, the stunning Fórnea waterfall only reveals its full grandeur after days of heavy rain.

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The Sheep's Sink is an imposing natural cavity, named after the sink carved under a stalactite that, in the rainy months, pours out abundant water. In the past, this natural refuge served as a drinking trough for cattle.

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The Buraco Roto is a necropolis of singular beauty, hidden in a lush forest of oak, laurel and cork oak trees. In the rainy months, it becomes a natural spectacle, spilling large quantities of water and forming an impressive waterfall.

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The Fórnea Waterfall is located right in the heart of the Serras de Aire e Candeeiros Natural Park, and is fed by the Fórnea Stream, which in turn flows from the Cova da Velha cave.

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Nice quiet route. No water at the waterfall, unfortunately. Because that would give a different experience, certainly worth it for the beautiful views

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The waterfall only appears after heavy rain! Fórnea waterfall just appear after intense rain!

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Erik
July 10, 2023, Fórnea Waterfall

Actually, there is supposed to be a waterfall here. Unfortunately dried out due to the drought in July.

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Frequently Asked Questions

What are the most unique natural monuments to explore near Alcaria?

Beyond the well-known sites, consider visiting the Buraco Roto Cave-Necropolis, a cave hidden in a lush forest that transforms into an impressive waterfall during rainy months. Another unique spot is the Pia da Ovelha Cave, an imposing natural cavity featuring a sink carved under a stalactite, historically used as a drinking trough for cattle.

What kind of geological formations can I expect to see in the Natural Park of Aire and Candeeiros Mountain?

The Natural Park of Aire and Candeeiros Mountain, where Alcaria is located, is renowned for its unique karst landscape. You'll encounter impressive cliffs formed during the Jurassic period, hundreds of caves sculpted by water erosion, sinkholes, and limestone pavements. The Fórnea de Porto de Mós, a massive amphitheater-shaped depression, is a prime example of this geological activity.

Are there family-friendly natural monuments or trails around Alcaria?

Yes, several natural monuments and trails are suitable for families. The Fórnea Waterfall is considered family-friendly, especially after rains when it's most active. For an easy hike, consider the "Fórnea Waterfall – Fornea Waterfall loop from Alcaria" which is just under 4 km. The broader Natural Park also offers various trails with different difficulty levels.

What is the best time to visit the natural monuments around Alcaria?

The best time to visit depends on what you want to see. For spectacular waterfalls like the Fórnea Waterfall and the Buraco Roto Cave-Necropolis, the rainy months are ideal as they are fed by seasonal streams. For hiking and exploring the caves, spring and autumn offer milder temperatures, making outdoor activities more comfortable.

What outdoor activities can I do near the natural monuments in Alcaria?

The area around Alcaria offers a variety of outdoor activities. You can enjoy extensive hiking, running, and mountain biking. Popular hiking routes include the "Fórnea Viewpoint – Fórnea Summit loop from Alcaria" (7.7 km, moderate) and the shorter "Fórnea Waterfall – Cova da Velha loop from Alcaria" (5.1 km, easy). For more options, explore the hiking trails around Alcaria, running trails, or MTB trails.

Are there any caves to explore near Alcaria?

Yes, Alcaria is situated within the Natural Park of Aire and Candeeiros Mountain, which is famous for its numerous caves. You can visit the Pia da Ovelha Cave and the Buraco Roto Cave-Necropolis. The Cova da Velha cave is also notable as the origin of the Fórnea stream. The park itself boasts over 130 identified caves, with some of the most famous being Mira de Aire, Alvados, and Santo António Caves.

What is the Fórnea de Porto de Mós and how can I visit it?

The Fórnea de Porto de Mós is a massive, amphitheater-shaped natural depression, about one kilometer in diameter and 250 meters high, sculpted by water erosion. It's a dramatic geological wonder within the Natural Park. You can visit it via a trail that starts in Alcaria and leads to its basin. Another trail encircles the Fórnea's ridge, offering panoramic views. The Fórnea Waterfall is located within this area.

What is the difficulty level of hiking trails around the natural monuments?

Hiking trails around Alcaria and the Natural Park vary in difficulty. You can find easy routes like the "Fórnea Waterfall – Cova da Velha loop from Alcaria" (5.1 km). Moderate options include the "Fórnea Viewpoint – Fórnea Summit loop from Alcaria" (7.7 km). There are also more challenging trails, particularly for longer running or mountain biking routes. Always check the specific trail details before heading out.

Are there any historical or cultural sites among the natural monuments?

Yes, the Buraco Roto Cave-Necropolis is a natural monument with significant historical value, serving as an ancient necropolis. The broader Natural Park also features a 175-million-year-old Jurassic fossil record, including the longest trail of sauropod dinosaur footprints in the world, which is classified as a Natural Monument itself.

Can I spot any wildlife near the natural monuments?

The Natural Park of Aire and Candeeiros Mountain is home to a rich and varied animal life. Notably, it provides shelter for 18 species of bats within its numerous grottoes. The diverse landscape also supports various birds, reptiles, and small mammals, making it a good spot for wildlife observation, especially in quieter areas.

What amenities are available near the natural monuments in Alcaria?

While the natural monuments themselves are pristine, Alcaria and nearby villages within the Porto de Mós municipality offer basic amenities. These typically include local cafes, restaurants, and accommodation options. For more specific needs, it's advisable to check in Porto de Mós town or larger nearby centers.

Are there any viewpoints offering panoramic views of the natural monuments?

Yes, the Fórnea de Porto de Mós offers dramatic panoramic views. Trails like the "Fórnea Viewpoint – Fórnea Summit loop from Alcaria" are specifically designed to take you to vantage points overlooking this massive natural depression. The ridge surrounding the Fórnea provides excellent opportunities for photography and appreciating the scale of the landscape.

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

AlcobaçaNazaréPenicheFerrelAtouguia Da BaleiaSão Martinho Do PortoFamalicãoCelaVestiariaMaiorgaBárrioPeniche (Ajuda)Serra D' El-ReiPeniche (Conceição)AmoreiraCozÓbidosOlho MarinhoVauCastanheira De PêraCaldas Da RainhaPorto De MósCampeloBatalhaSão MamedePataiasPorto De Mós (São Pedro)Porto de Mós - São João Baptista e São PedroCalvaria De CimaAlqueidão Da SerraMira De AireSão BentoPedreirasJuncalReguengo Do FetalBatalhaAlvadosValado Dos FradesNazaréAljubarrotaBombarralSerro VentosoAlpedrizFigueiró Dos VinhosTornadaSerras de Aire e Candeeiros Natural ParkNational Park Serras Aire e CandeeirosArrimal e Arrimal e Arrimal e MendigaAljubarrota (São Vicente)Óbidos (Santa Maria)ArrimalBombarral e Vale Covo e Vale Covo e Vale CovoMontesSobral Da LagoaCastanheira De PeraPedrógão GrandeFoz Do ArelhoPedrógão GrandeAlfeizerãoAlcobaçaSerra Do BouroNadadouroCaldas Da Rainha (Santo Onofre)Évora De AlcobaçaGolpilheiraCarvalhalCoentralPombalSanta Catarina da Serra e ChainçaCortesChainçaSalir Do PortoCotoSalir De MatosTorre De Vale De TodosFigueiró dos Vinhos e BairradasAnsiãoBarreiraArrabalÓbidos (São Pedro)Santa CatarinaCaldas Da Rainha (Nossa Senhora Do Pópulo)Carvalhal BenfeitoTurquelAlvaiázereAgudaVila FacaiaAnsiãoAzoiaVimeiroAlvorgeBeneditaMaceiraLagarteiraAvelarRoliçaGaeirasA Dos NegrosPousosPousafloresPussosLandalA Dos FrancosVale CovoGraça

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