Best lakes around Landal feature a collection of dammed rivers and artificial lagoons, primarily serving agricultural and water supply purposes. These locations offer opportunities to explore varied landscapes, from cultivated fields to natural reserves. Many of these water bodies contribute to the local environment and economy through irrigation. The areas surrounding these lakes often provide paths suitable for cycling and walking, alongside spots for observing local wildlife.
Last updated: July 1, 2026
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The Arnóia River rises in the Serra de Todo o Mundo and flows for 30 km before flowing into the Óbidos Lagoon. A dam was built about one and a half kilometres from Óbidos, in the Horta Valley, whose reservoir was used to irrigate the area's crops.
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Small artificial lake, where we can sometimes see some wild birds. There is a shooting range nearby, if you hear gunshots, be careful.
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This area, which is home to vast meadows, owes its name to the fact that in the past (80 or 90 years ago) it was a place where wild cattle were allowed to graze freely. Next to a small lake created to retain rainwater (surface water is rare in the Serra de Montejunto, as it is a mountain made up mostly of limestone), you can still see the ruins of an old stable where the animals spent the night to protect themselves from the cold. Today, this area, especially in the autumn and winter months, is used as a grazing area for goats and sheep. In the spring and summer, these fertile meadows are used by the populations of the nearby villages (Cercal and Rocha Forte) to grow crops such as potatoes and other dryland crops.
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Opened in 2005, this dam never fully served the purposes for which it was created. After recent works (2022/2023), it is now expected that it will be able to serve farmers in the region with water for irrigation and even be used for leisure purposes. The surrounding region has interesting paths for mountain biking or gravel cycling.
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Built in 1997, the Sobrena (Cadaval) dam never filled. It was expected to irrigate 100 hectares of agricultural land, benefiting 120 farmers, mainly Rocha pear producers. The dam is an exposed ruin, with the support buildings invaded by brambles and a wall from which a pond can be seen in the place where a reservoir should have been. All around you can see eucalyptus trees. And these trees are precisely one of the reasons for the failure of this investment of more than two million euros.
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Dammed lake for the water supply of Obidos. Nicely situated in the valley
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The lakes around Landal are primarily a collection of dammed rivers and artificial lagoons, serving agricultural and water supply purposes. These water bodies offer diverse environments, from cultivated fields to natural reserves, and often provide paths for cycling and walking.
Yes, the Arnóia River, a dammed lake for the water supply of Obidos, is categorized as family-friendly. It is nicely situated in the valley and offers a pleasant environment for a family outing.
The areas around the lakes offer various outdoor activities. For example, the region surrounding Alvorninha Dam has interesting paths suitable for mountain biking or gravel cycling. You can also find dedicated routes for mountain biking, road cycling, and running in the broader Landal area. Explore more options on the MTB Trails around Landal, Road Cycling Routes around Landal, and Running Trails around Landal guide pages.
Yes, the Azambuja Artificial Lagoon is known for sometimes hosting wild birds, making it a good spot for birdwatching. The general areas around these water bodies also contribute to the local environment and can offer chances to observe local wildlife.
Many of the areas surrounding the lakes, such as Alvorninha Dam, provide paths suitable for cycling and walking. These paths allow visitors to explore the varied landscapes, from cultivated fields to natural reserves.
Many of these water bodies, like the Arnóia River dam, were built for water supply or irrigation purposes. The Alvorninha Dam, opened in 2005 and recently updated, was intended for irrigation and potential leisure. You can also find sites like Malhada dos Touros, which features a small rainwater lake and ruins of an old stable, reflecting past agricultural uses.
For a unique experience, consider Malhada dos Touros. This area, known for its vast meadows, features a small lake created to retain rainwater and the ruins of an old stable. It offers a glimpse into the region's past as a grazing area for wild cattle, and today is used by local farmers and shepherds.
The lakes around Landal, including dammed rivers and artificial lagoons, primarily serve agricultural and water supply purposes. They are crucial for irrigation in the region and contribute to the local environment and economy.
The Arnóia River is a dammed lake that supplies water to Obidos. It is beautifully situated in a valley, with the river flowing for 30 km before reaching the Óbidos Lagoon. It's a pleasant spot to visit, offering scenic views and a sense of tranquility.
Yes, the Alvorninha Dam, originally opened in 2005, underwent recent works in 2022/2023. These updates aim to better serve regional farmers with water for irrigation and potentially open up the area for leisure activities.
Visitors appreciate the lakes around Landal for their diverse environments and the opportunities they offer for outdoor exploration. The komoot community has shared photos and given positive upvotes, highlighting the appeal of these dammed rivers, artificial lagoons, and rainwater retention lakes for walking, cycling, and observing nature.


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