Best natural monuments around Serra Do Bouro include coastal features and geological formations along the Atlantic. This rural area, part of the Caldas da Rainha municipality, is characterized by its dramatic coastline and unspoiled natural beauty. The region offers scenic views and opportunities for exploration along its trails. Its primary draw for visitors is the direct interface with the Atlantic Ocean and its associated natural landmarks.
Last updated: May 2, 2026
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Penedo Furado dates back to the Jurassic period, when the sea bathed this inland area, close to Nadadouro. It is now a huge rock, light brown in colour and on the side facing the Óbidos Lagoon, signs of erosion are visible, with deep cavities and one of them ended up going through the rock, forming a passage.
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At this exact spot there is only a turning circle for cars - and Google Maps also shows the spot a few 100m further to the southwest: so there is nothing right here!
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Salir do Porto has a river beach, on the bank of the Tornada River, which flows into the bay of São Martinho do Porto. Salir beach is famous for its sand dune about 50 meters high. Once the largest in Europe, the Salir Dune stands out in the dune landscape of São Martinho Bay. The core of the Dune is partly made up of red sandstone, a vestige of an older dune – a fossil dune. There are other rock beaches in the coastal area that are locally called Quebradas. It was in the Ruins of the artisanal Customs House of Salir that the caravels that participated in the discoveries and conquests were built during the reigns of D. Afonso V and D. João II. The extinct parish was made up of the towns of Salir do Porto, Casais de Salir do Porto and Bouro.
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Climbing up the sand dune and sliding down from the top is the highlight for everyone
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Be sure to go up there from the top, great view and slide down on your bum. Large dune that clings to the rocks there, perfect for hiking. At the foot of the dune, the Tornada river flows into the sea.
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The Óbidos Lagoon is a fascinating combination of natural beauty, cultural heritage and adventure activities. This coastal lagoon with its unique ecosystem
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Praia de Salir do Porto is next to the mouth of the Rio Tornada or Rio Salir on the south bank. The sand is very extensive, it is wider in the south and narrows as we walk north. This beach is known for its huge dune about 50 meters high, the highest in Portugal.
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This place was mentioned in the travel guide and on Google maps, but it is not easy to find. I was expecting a tourist attraction with signs and thought you couldn't miss it, but we walked past it and had to go back because there were no signs. On the rock field it is also quite difficult to find tracks at all and needs some imagination...
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For families, Foz do Arelho Beach is an excellent choice, offering both Atlantic waves and a protected lagoon suitable for children. The Salir do Porto Dune is also very popular, especially for sliding down its sandy slopes. Additionally, the Penedo Furado Rock Arch provides an interesting geological formation to explore.
Serra Do Bouro is characterized by its dramatic Atlantic coastline. You'll find expansive sandy beaches like Foz do Arelho Beach, impressive dunes such as the Salir do Porto Dune (the highest in Portugal), and unique geological formations like the Penedo Furado Rock Arch, which dates back to the Jurassic period.
Yes, the entire coastline around Serra Do Bouro offers breathtaking vistas. The top of the Salir do Porto Dune provides great panoramic views. Many points along the cliffs, including those near Praia dos Covões, offer stunning perspectives of the Atlantic Ocean and the rugged shoreline.
The region around Serra Do Bouro is ideal for various outdoor activities. You can enjoy gravel biking on routes like the 'Óbidos Lagoon – Lagoa de Óbidos Gravel Trail' or 'Lagoa de Óbidos Gravel Trail – Óbidos Lagoon loop'. There are also running trails, such as the 'View of the Lagoon loop from Foz do Arelho', and road cycling routes like 'Swing at Serra do Bouro – Foz do Arelho Beach loop'. You can find more details on these activities in the Gravel biking around Serra Do Bouro, Running Trails around Serra Do Bouro, and Road Cycling Routes around Serra Do Bouro guides.
Yes, the coastal area offers numerous opportunities for hiking. You can explore trails that lead along the cliffs and provide access to natural monuments like Praia dos Covões. The region's unspoiled rural character and direct interface with the Atlantic make for scenic coastal walks. For specific running routes that can also be hiked, consider options like the 'View of the Atlantic Coast loop from Foz do Arelho' found in the Running Trails around Serra Do Bouro guide.
Visitors particularly appreciate the diverse natural beauty. Highlights like the Salir do Porto Dune are loved for the fun of sliding down and the great views from the top. Foz do Arelho Beach is praised for its dual appeal of ocean waves and calm lagoon waters. The unique geological formations, such as the Penedo Furado Rock Arch, also draw significant interest for their historical and natural significance.
There is a site known for Dinosaur Footprints around Serra Do Bouro. However, visitors have noted that it can be challenging to find, as it is not always well-signed and requires some imagination to spot the tracks on the rock field.
Yes, Praia dos Covões is a beautiful, long-stretched beach with steep cliffs that is often deserted. It's a great option if you're looking for a more tranquil natural experience, though it lacks amenities like restaurants or toilets.
The coastal climate of Serra Do Bouro makes it enjoyable for exploring natural monuments for much of the year. Spring and early autumn generally offer pleasant temperatures for hiking and outdoor activities, avoiding the peak summer heat and crowds, while still providing good weather for enjoying the beaches and coastal views.
Generally, no specific permits are required to visit the natural monuments or hike on public trails around Serra Do Bouro. Access to beaches, dunes, and rock formations is typically open to the public. However, it's always advisable to respect local regulations and private property signs.
While Serra Do Bouro is a rural area, some natural monuments like Foz do Arelho Beach and Salir do Porto Dune are located near towns with bus connections, such as Caldas da Rainha. However, reaching more secluded spots might require a car or a combination of public transport and walking.
Yes, areas around popular spots like Foz do Arelho Beach and Salir do Porto offer cafes and restaurants. For more remote natural monuments like Praia dos Covões, amenities are scarce, so it's best to plan accordingly and bring your own provisions.


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