Top 8 Caves in Leiria
Best caves in Leiria are found within a region characterized by its diverse natural landscape, including impressive underground systems. The district of Leiria in Portugal offers a glimpse into fascinating subterranean worlds sculpted by geological processes over millions of years. These natural features contribute to the area's appeal for outdoor exploration and discovery. The terrain includes limestone formations, which are conducive to the development of extensive cave networks.
Best caves in Leiria
- The most popular caves include Buraco Roto Cave-Necropolis, a natural monument and historical site hidden in a lush forest. In rainy months, it forms an impressive waterfall.
- Another must-see spot is Forno de Orca, a natural monument and viewpoint. This cave is visible when the sea is calm and at low tide.
- Visitors also love Pia da Ovelha Cave, a large natural cavity. It features a sink carved under a stalactite that pours out water in rainy months, historically used as a drinking trough for cattle.
- Leiria is known for its show caves, natural cavities, and historical cave-necropolis sites. These caves offer a variety of geological formations and historical insights to explore.
- The caves in Leiria are appreciated by the komoot community, with more than 10 upvotes and over 30 photos shared by visitors.
Last updated: April 27, 2026
Pia da Ovelha Cave
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Cova da Velha
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Buraco Roto Cave-Necropolis
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Forno de Orca
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Grutas de Mira de Aire
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The first gallery of this system of caves was discovered by locals in 1947. Of course people were curious and had to investigate further. What is known today is that the cave reaches 11 Kilometers in length which makes it the biggest and most important in Portugal. The formation of the cave goes back 150 million years to the middle Jurassic age when dinosaurs inhabited this region. They found traces of species who inhabited these caves, some of it on display.
A part of the cave-system was opened to the public in 1974 with many improvements in safety for the visitors in later years. At one point colored lights found their way in with some spectacular and dramatic effects.
My photos inside the cave are in the wrong order, not sure how to interchange them or what I've done wrong when uploading, sorry!
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Moeda Caves
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You can also admire a magnificent and unique exhibition of minerals and fossils from Portugal and many other countries.
In our shop you will find a huge variety of minerals and fossils from various countries.
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Olho do Tordo Spring
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Grutas de Santo António
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Definitely worth a visit. We visited another grotto during our stay, but this one was considerably larger and more impressive.
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Beyond the natural structure of the cave, you can also visit the Scientific-Environmental Interpretation Centre (CICA gm). Here, visitors can discover how a cave is formed and how it interacts with local biodiversity, understand the importance of limestone in our region and how it influences people's way of life. You can also admire a magnificent and unique exhibition of minerals and fossils from Portugal and many other countries. In our shop you will find a huge variety of minerals and fossils from various countries.
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The Eye of the Thrush is a mysterious spring that gushes from the bowels of the earth, forming a stream that sleeps in the summer. Among ancient mills and vestiges of bygone eras, the water resurfaces from a deep grotto, a natural spectacle of rare beauty.
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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 cave is only visible when the sea is calm and low; on high tide days the sea violently penetrates the cave.
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Frequently Asked Questions
What are some of the most impressive show caves in the Leiria district?
The Leiria district is home to several remarkable show caves. Among the most notable are the Grutas de Mira de Aire, known as the largest show caves in Portugal, and the Grutas da Moeda, which offer a unique experience near Fátima. You can also explore the monumental Grutas de Santo António and the geologically rich Grutas de Alvados, both within the Serra d'Aire e Candeeiros Natural Park.
Are there family-friendly caves to visit in Leiria?
Yes, several caves in the Leiria district are suitable for families. The Grutas de Mira de Aire are particularly family-friendly, offering well-organized guided tours through illuminated chambers. The Grutas da Moeda also provide an accessible experience with an accompanying Scientific-Environmental Interpretation Centre that children might enjoy.
What unique geological features can I expect to see in Leiria's caves?
Leiria's caves showcase a variety of stunning geological formations. In Grutas de Mira de Aire, you'll find extensive stalactites, stalagmites, and underground lakes, including the 'Rio Negro'. The Grutas da Moeda feature chambers with evocative names like 'Cascade' and 'Spring of Tears'. Grutas de Santo António boast monumental chambers with majestic columns, while Grutas de Alvados are notable for their speleothem cave coral and rooms like the 'Catedral' with high ceilings and beautiful formations.
Are there any historical or cultural sites related to caves in Leiria?
Yes, the Leiria region offers caves with historical significance. The Buraco Roto Cave-Necropolis is a natural monument and historical site, believed to have been used as a burial ground. The Grutas da Moeda are also associated with a local legend about a wealthy man and his spilled coins, giving the caves their name.
What is the typical temperature inside the caves in Leiria?
The caves in the Leiria district generally maintain a stable and comfortable temperature year-round. For instance, Grutas de Mira de Aire, Grutas da Moeda, Grutas de Santo António, and Grutas de Alvados all typically have internal temperatures ranging from 16°C to 18°C (61-64°F).
How long does it take to explore the main show caves?
The duration of a visit varies by cave. Guided tours at Grutas de Alvados typically last about an hour. For the larger systems like Grutas de Mira de Aire, which involves descending 683 steps and exploring 600 meters of passages, you should allocate more time, usually around 1.5 to 2 hours for the full experience.
What outdoor activities can I do near the caves in Leiria?
The Leiria region offers various outdoor activities. You can find numerous hiking trails, such as those mentioned in the Hiking in Leiria guide, including routes like the Fórnea Viewpoint loop. For cyclists, there are Road Cycling Routes and MTB Trails available throughout the district, offering diverse terrain to explore.
Are there any caves in Leiria that are only visible under specific conditions?
Yes, some natural cavities in Leiria are condition-dependent. For example, Forno de Orca, a natural monument and viewpoint, is only visible when the sea is calm and at low tide. During high tide, the sea violently penetrates the cave, making it inaccessible.
What should I wear when visiting caves in Leiria?
Given the stable cool temperatures inside the caves (around 16-18°C), it's advisable to wear comfortable walking shoes and bring a light jacket or sweater, even if it's warm outside. The paths can sometimes be damp or uneven, so good traction is beneficial.
Where can I find more information about the formation of these caves?
The Grutas da Moeda feature a Scientific-Environmental Interpretation Centre (CICA gm) where visitors can learn about cave formation, the importance of limestone, and local biodiversity. Guided tours at Grutas de Alvados also provide insights into their formation and the geological history of the area.
Are there any caves in Leiria known for waterfalls?
Yes, some caves in the Leiria region feature impressive waterfalls, particularly during rainy months. The Buraco Roto Cave-Necropolis becomes a natural spectacle with a large waterfall. Additionally, the Pia da Ovelha Cave has a sink carved under a stalactite that pours out abundant water in the rainy season.
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