Best lakes around Ílhavo are characterized by their intimate connection to the Ria de Aveiro, a vast estuarine lagoon system in central Portugal. This unique aquatic landscape, often referred to as the "Portuguese Venice," spans over 75 square kilometers and is one of Europe's last untouched coastal marshlands. The region offers a blend of natural beauty, opportunities for outdoor activities, and cultural significance, making it a notable destination for exploring coastal ecosystems and wildlife. Ílhavo's historical maritime traditions, particularly its…
Last updated: May 13, 2026
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The Ria de Aveiro, in Portugal, is an estuary rich in biodiversity. This aquatic ecosystem is famous for its meandering canals, salt marshes and diverse fauna. This point, specifically, is on EN 327, which runs parallel to the Ria for long kilometers, offering incredible views.
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Pateira de Fermentelos, located between the municipalities of Águeda, Aveiro and Oliveira do Bairro, is one of the largest natural lagoons on the Iberian Peninsula and part of the list of Ramsar sites. Surrounded by the parishes of Óis da Ribeira, Fermentelos, Espinhel and Requeixo, it stands out for its rich biodiversity, including a variety of birds, aquatic plants and various fish.
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Pateira de Fermentelos is the largest natural lagoon in the Iberian Peninsula, a haven of biodiversity and home to over 150 species of birds. It is located between the municipalities of Águeda, Aveiro and Oliveira do Bairro, before the confluence of the River Cértima with the River Águeda. There are several trails and paths around the lagoon that can be explored on foot or by bike, especially during the dry season.
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a beautiful, quiet bike route always with a view of the Ovar Canal, from time to time there are flamingos in the shallow water...
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The entire narrow peninsula separating the lagoon from the ocean is formed by a sand bank deposited off the prehistoric coastline that eventually closed in and filled with water. It is hugged by a wide road with a good shoulder for biking, all the way from the Sao Jacinto ferryboat dock at the southern tip, to Ovar in the north, with two small beach towns in between, worth a detour. To keep it straight, this section highlights the longest part, from the southern tip to Torreira. The middle section goes from Torreira to the bridge that crosses the lagoon to th east, and the norther section goes from the bridge to Ovar, where the peninsula ends. The Ria (lagoon) continues as a natural canal parallel to the coast for another 50 kilometer or so to the north.
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The coastal bike route (EuroVelo1) follows a long stretch of the canal formed by the occlusion of the rivers restricted from flowing directly into the ocean by the sand build up along the shore, eventually forming the large Aveiro lagoon, where the rivers finally break through to the ocean.
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On the lagoon side of the road the local fishermen continue to attach their traditional small shallow boats and also fish with rods from the wooden piers. On the other side a trailhead with picnic tables and restroom is a good rest area with a quick trail to a marshy pond in the nature reserve promising great birding opportunities.
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The region around Ílhavo is primarily characterized by the Ria de Aveiro, a vast estuarine lagoon system rather than traditional inland lakes. This unique aquatic landscape, often called the 'Portuguese Venice,' features meandering canals, salt marshes, and diverse wetlands. You'll find areas like the EV1 on the Ria de Aveiro, which offers views of the Ovar Canal, and the Duck ponds in the São Jacinto forest, which are flooded areas combining fresh and salt water.
The Ria de Aveiro system is a haven for birdwatching. The EV1 on the Ria de Aveiro is known for sightings of flamingos in its shallow waters. Additionally, the Fishing docks and picnic trailhead at Cozinhas da São Jacinto offers access to a marshy pond within a nature reserve, providing excellent birding opportunities. The Duck ponds in the São Jacinto forest are also a refuge for numerous water birds.
Yes, several spots are ideal for families. The EV1 on the Ria de Aveiro is a family-friendly cycle path with beautiful views. The Fishing docks and picnic trailhead at Cozinhas da São Jacinto provides picnic tables and a gentle trail. The Pateira de Requeixo Swing offers an easily accessible viewpoint over the lagoon, and the Duck ponds in the São Jacinto forest are a great place for children to observe wildlife.
The region offers a variety of outdoor activities. Cycling is popular, with routes like the EV1 on the Ria de Aveiro offering scenic rides. Water sports such as kayaking, stand-up paddleboarding, and windsurfing are common in the calmer waters of the Ria. You can also explore hiking trails, including those accessible from the Fishing docks and picnic trailhead at Cozinhas da São Jacinto. For more ideas, check out the Cycling around Ílhavo and Hiking around Ílhavo guides.
Yes, the EV1 on the Ria de Aveiro is a well-known cycle path that runs parallel to the Ria, offering incredible views of the Ovar Canal. Additionally, the Caminho do Praião is an eco-path and cycling path between Gafanhas da Encarnação and Carmo, following an old agricultural service path along the eastern bank of the Mira Canal, perfect for connecting with nature.
Ílhavo has a rich maritime history, particularly its connection to cod fishing. You can observe traditional fishing activities and boats at the Fishing docks and picnic trailhead at Cozinhas da São Jacinto and the Campground and fishing docks. Traditional Moliceiro boat tours are also available on the Ria, offering a glimpse into the region's heritage. The nearby Costa Nova is famous for its colorful striped houses ('palheiros'), reflecting local architectural traditions.
For magnificent views, visit the Pateira de Requeixo Swing, which overlooks the Pateira do Requeixo lagoon. The EV1 on the Ria de Aveiro also offers continuous scenic views along the Ovar Canal. The Barra Lighthouse, though not directly on a 'lake,' provides panoramic views of the lagoon and the Atlantic Ocean from its location at the mouth of the Ria.
The region is enjoyable year-round, but spring and autumn offer pleasant temperatures for outdoor activities like cycling and hiking, and are excellent for birdwatching as migratory species pass through. Summer is popular for water sports and beach visits to Costa Nova and Barra, though it can be busier.
Yes, the São Jacinto Dunes Natural Reserve is located on the São Jacinto Peninsula, offering pristine beaches and a diverse range of flora and fauna. This protected area provides a tranquil escape for nature lovers and is home to the Duck ponds in the São Jacinto forest, a unique ecosystem for water birds.
Visitors frequently praise the rich biodiversity and tranquility of the Ria de Aveiro. They enjoy the quiet bike routes with views of the canals, the opportunities for birdwatching, and the chance to observe traditional fishing activities. The easily accessible viewpoints, like the Pateira de Requeixo Swing, are also highly appreciated for their natural beauty and peaceful atmosphere.
While specific cafes and pubs are not detailed for every location, popular coastal areas like Costa Nova, which is intrinsically linked to the Ria de Aveiro system, offer various cafes and restaurants. Along routes like the Caminho do Praião, you'll find resting areas, but it's advisable to check local listings for specific dining options near your chosen activity spot.
Yes, the Fishing docks and picnic trailhead at Cozinhas da São Jacinto is a designated rest area with picnic tables and restrooms, making it a convenient stop for visitors. The Caminho do Praião also features five resting areas along its path.


Still not found your perfect lake around Ílhavo? Check out the guides of these regions to see even more beautiful places.