Best natural monuments around Foz Do Arelho are characterized by the unique interplay of the Atlantic Ocean and the Óbidos Lagoon. This region on Portugal's Silver Coast features diverse natural landscapes, including extensive beaches, coastal cliffs, and a significant lagoon system. The area offers a variety of natural features for exploration and outdoor activities.
Last updated: June 29, 2026
Highlight • Natural Monument
Translated by Google •
Tip by
Highlight • Beach
Translated by Google •
Tip by
Sign up now to discover places like this
Get recommendations on the best single tracks, peaks, & plenty of other exciting outdoor places.
Sign up for free
Highlight • Natural Monument
Translated by Google •
Tip by
Highlight • Beach
Translated by Google •
Tip by
Highlight • Viewpoint
Tip by
Sign up for free to discover even more natural monuments around Foz Do Arelho.
Sign up for free
Already have an account?
Start today with a free account
Your next adventure awaits.
Login or Signup
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.
1
0
The coast is spectacular and there are some paths leading next to the coastal cliffs. It's beautiful there!
1
0
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.
0
0
Climbing up the sand dune and sliding down from the top is the highlight for everyone
3
0
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.
3
0
The Óbidos Lagoon is a fascinating combination of natural beauty, cultural heritage and adventure activities. This coastal lagoon with its unique ecosystem
1
1
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.
3
0
Beautiful long stretched beach with steep cliffs behind. Often deserted because there are no restaurants, toilets, etc. Of course, therefore also unguarded. Parking is possible either at the end of an unpaved road that is easy to drive on or on paved ground above the cliff.
2
0
Foz do Arelho is characterized by the unique interplay of the Atlantic Ocean and the Óbidos Lagoon. You can explore the vast lagoon system, the dynamic Foz do Arelho Beach where the lagoon meets the ocean, impressive coastal cliffs with panoramic views, and even the highest dune in Portugal at Salir do Porto Dune.
Foz do Arelho Beach offers a unique duality. One side features the calm, shallow waters of the Óbidos Lagoon, ideal for families and tranquil activities. The other side faces the Atlantic Ocean, with stronger waves perfect for surfing and other water sports. Its extensive golden sands and breathtaking views from the coastal cliffs make it a diverse natural attraction.
The highest dune in Portugal, reaching approximately 50 meters, is located at Salir do Porto Dune. This natural monument offers expansive, uncrowded stretches of golden sand and panoramic views of the coastline. Visitors often enjoy climbing to the top for the views and sliding down.
Yes, you can visit Penedo Furado Rock Arch. This large rock formation dates back to the Jurassic period and features deep cavities and a natural passage formed by erosion, offering a glimpse into the region's geological history.
The area around Foz do Arelho is excellent for outdoor activities. You can enjoy hiking along coastal paths and through forested areas, with routes like the 'Foz do Arelho Beach – Lagoa de Óbidos loop'. Cycling is also popular, with options ranging from easy routes like the 'Óbidos Lagoon Cycleway' to more challenging road cycling tours. For more details on routes, explore the hiking and cycling guides for Foz do Arelho.
Yes, there are easy options. For instance, the 'Foz do Arelho Beach – Path to Praia da Foz do Arelho loop' is an easy hiking route. The calm, shallow waters of the Óbidos Lagoon side of Foz do Arelho Beach are also very suitable for children and offer safe environments for walks and play. The wooden walkways along the cliffs provide accessible paths for scenic strolls.
The Óbidos Lagoon is a designated Ramsar site, recognized for its international importance for water birds. The best season for birdwatching is typically during autumn and winter, when many migratory birds, including white-faced cormorants, mallards, and various plovers and sandpipers, reside or stop over here.
Absolutely. Foz do Arelho Beach is highly recommended for families, offering safe, calm lagoon waters for swimming and paddleboarding. Salir do Porto Dune is also a hit with families, where children (and adults) enjoy climbing and sliding down the sand. Many walking paths are suitable for family outings.
While specific regulations can vary, many natural outdoor areas and beaches in Portugal are generally dog-friendly, especially during off-peak seasons. It's always best to keep dogs on a leash and clean up after them. The expansive sandy stretches of beaches like Praia dos Covões or the walking paths around the lagoon are popular for walks with pets.
The coastline around Foz do Arelho features impressive cliffs that offer breathtaking views of the Atlantic Ocean. Wooden walkways have been constructed along some sections, providing opportunities for scenic walks while protecting the sensitive ecosystems. The 'Foz do Arelho to São Martinho do Porto' trail is particularly popular for its ocean and forest paths, allowing you to explore these dramatic landscapes.
Yes, parking is generally available near the main natural monuments. For example, Foz do Arelho Beach has designated parking areas. For more secluded spots like Praia dos Covões, parking is available at the end of an unpaved road or on paved ground above the cliff.
While many natural trails can be challenging, some areas offer better accessibility. The wooden walkways constructed along parts of the Foz do Arelho coastline, such as those near the cliffs, are designed to enhance access and may be suitable for wheelchairs in certain sections. The promenade at Foz do Arelho Beach also provides easy access to the beach area.


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