Best lakes around Valezim are situated within the broader Serra da Estrela region, known for its diverse aquatic landscapes. Valezim, located in the municipality of Seia, Portugal, provides access to these natural features. The area encompasses a variety of glacial lakes, artificial reservoirs, and picturesque river beaches. This Valezim region lakes Portugal guide highlights key spots for exploration.
Last updated: June 17, 2026
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Covão dos Conchos is an artificial lagoon located in the Serra da Estrela Natural Park, Portugal, near the mountain village of Sabugueiro. Covão dos Conchos became famous for its bell-mouth spillway[1]. The spillway was built in 1955 to allow water to be transferred from the Ribeira das Naves River to Lagoa Comprida. It is part of the Serra da Estrela Hydroelectric System. This science fiction-style spillway became famous when photographs of the hole went viral on social media in 2016. Over the past 60 years, the growth of vegetation at the funnel's mouth has created extraordinary biodiversity and increased its ethereal allure. It is 4.6 meters high and 48 meters in circumference. The tunnel that collects the water is 1,519 meters long.
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Located within the Planalto Superior biogenetic reserve, the Rossim Valley is a unique location of great scientific, environmental, and scenic value that deserves to be protected and enhanced. Although it is an artificial lake, over time, conditions have been created that have transformed this area into an excellent leisure and recreation area that attracts countless tourists. The Vale do Rossim recreation center is located at an average altitude of 1,437 meters. Before the dam was built, it was one of the best high-altitude pastures in the municipality of Gouveia. The area has almost always been frequented by transhumance herds, flocks that gathered here from São João to the Sr. do Calvário festivities in August.
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At over 1,400 meters above sea level, the Rossim Valley Reservoir is a haven of granite, pine trees, and crystal-clear waters in the heart of the Serra da Estrela Mountains. It's the perfect setting for strolls, summer swims, and admiring nature in all its splendor, one of Portugal's highest jewels.
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Hiking in the Serra da Estrela is always pleasant, with stunning scenery and spectacular trails. 👍
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This restaurant and bar is located right on the lake (there's nothing else in the area), and it's nice to sip a nice beer 🍺 and grab a bite to eat after a sunny day or a nice hike. Also... For those who want to stay longer, there's the Vale do Rossim Eco Resort: camping, equipped yurts, or wooden cabins, with the option of half-board at a reasonable price at this lakeside restaurant. Breakfast is good, dinner is very simple, but all drinks are included, including a bottle of wine 🍷 🤪.
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A beautiful nature trail, about 9 km round trip to Covão dos Conchos. Unfortunately, on August 15th, the water couldn't reach the hole and thus reveal the waterfalls. It's a reservoir, part of the Serra da Estrela hydroelectric system. A funnel-shaped drainage structure that allows water to flow from this body of water to Lagoa Comprida. The spillway was built in 1955 to divert water from Ribeira das Naves to Lagoa Comprida. Over the past 60 years, moss and foliage have grown over the mouth of the funnel, creating a captivating spectacle. It is 4.6 meters high and 4.8 meters in circumference. The tunnel that collects the water is 1,519 meters long. It's a stunning place to visit, not only for the combination of human intervention and nature, but also for the surrounding landscape.
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Located at an altitude of approximately 1,600 meters, Lagoa Comprida is the largest water reservoir in the Serra da Estrela, intended for hydroelectric generation. This natural lake lies in a wide depression of glacial origin, approximately one kilometer long, which fed the Covão Grande glacier. Numerous glacial scars are visible along its banks, making this lake one of the most interesting geomorphological sites in the Serra da Estrela. Construction on this lake began in 1911, and by 1914, it was already six meters high. Later, in 1965, it underwent heightening work that increased its height to 28 meters, currently boasting a storage capacity of approximately 14 cubic hectometers, flooding an area of approximately 80 hectares. Small streams of water flow into this lagoon, as well as water retained in the Covões dos Conchos and Covões do Meio and carried to this lagoon through underground tunnels.
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We walked this walk in October, on a beautiful day, after a few days of heavy rain. Due to the previous wet days, parts of the path were quite a challenge. Certainly to keep your feet dry. The advantage was that the water flowed nicely into the 'drain'. Beautiful sight and impressive. Due to the path of pebbles, boulders, unevenness, etc., it is advisable to wear good walking shoes. Take enough food and drink with you, as is always the advice. In sunny weather, protection from the sun is absolutely necessary. There is no protection from the sun during the walk. Walk calmly, enjoy the surroundings and let everything sink in.
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The Serra da Estrela region, accessible from Valezim, offers several notable aquatic spots. Among the most popular are Long Lake, the largest water reservoir in the Serra da Estrela, and Vale do Rossim Reservoir, an artificial lagoon developed for leisure. Additionally, the unique Covão dos Conchos Trail leads to a fascinating drainhole spillway. For river beaches, Loriga River Beach and Lapa dos Dinheiros River Beach are highly regarded.
The region is rich in unique natural features. Long Lake, for instance, is of glacial origin and displays numerous glacial scars along its banks. The Covão dos Conchos Trail is famous for its distinctive 'drainhole' spillway, an artificial funnel that has developed an extraordinary appearance over time. Loriga River Beach is uniquely situated within a glacial valley, offering pristine, crystal-clear mountain waters.
Yes, several spots are ideal for families. Vale do Rossim Reservoir is an artificial lagoon developed into a leisure area, perfect for strolls and summer swims. Loriga River Beach, located in a glacial valley, features low-depth natural pools suitable for children and provides good support services like parking, restrooms, and a lifeguard.
The area around Valezim's lakes is excellent for various outdoor activities. You can enjoy hiking, cycling, and running. For example, there are many easy hikes, including the Tour da Eira (PR 4) and the Covão do Curral Dam – Covão do Ferro Lake loop. Cyclists can explore routes like the Serra da Estrela – Casa das Obras Fountain loop. For runners, trails like the Oh Meu Deus 50k Trail offer challenging experiences. You can find more details on these activities in the easy hikes around Valezim guide, cycling around Valezim guide, and running trails around Valezim guide.
For refreshing dips, you have several options. Vale do Rossim Reservoir is popular for summer swims. Loriga River Beach offers pure, crystal-clear, albeit cold, waters from mountain springs. Lapa dos Dinheiros River Beach also provides inviting clear waters for swimming. Additionally, Poço da Broca de Serapitel features a beautiful waterfall with a natural bathing pool.
The best time to visit depends on your preferred activities. Summer is ideal for refreshing swims at river beaches like Loriga and Lapa dos Dinheiros, and for enjoying leisure activities at Vale do Rossim Reservoir. For hiking, especially to spots like Covão dos Conchos, spring and autumn offer pleasant temperatures, though visitors in October have noted beautiful conditions after rain, making the 'drain' impressive.
Yes, near Vale do Rossim Reservoir, you'll find the Vale do Rossim River Beach Restaurant. It's conveniently located right on the lake, offering a place to relax, have a drink, and grab a bite after a hike or a day by the water. Loriga River Beach also provides support services, including a bar.
Covão dos Conchos is a must-see due to its unique 'drainhole' spillway. This artificial funnel, part of the Serra da Estrela Hydroelectric System, funnels water from the Ribeira das Naves River to Lagoa Comprida. The growth of vegetation around the funnel over 60 years has created an extraordinary and ethereal appearance, often described as science-fiction-like, set within magnificent landscapes.
The trail to Covão dos Conchos is generally considered an easy hike, offering magnificent landscapes. However, it's important to wear good walking shoes as many areas have scree and loose stones. In sunny weather, sun protection is essential as there's little shade. If visiting after heavy rains, parts of the path can be challenging to keep your feet dry. Always carry enough food and drink.
Loriga River Beach is unique as it's the only river beach in Portugal situated within a glacial valley, right in the heart of the Serra da Estrela Natural Park. It boasts pure, crystal-clear, albeit cold, waters from mountain springs, surrounded by imposing mountains. It's well-equipped with services like parking, restrooms, first-aid, a meal area, and a lifeguard, making it ideal for refreshing summer dips and adventure sports.
Beyond the well-known lakes, Poço da Broca de Serapitel is a beautiful waterfall with a bathing pool in an idyllic location, offering a more secluded experience. While access can be challenging, involving a descent from Loriga, its natural beauty makes it a rewarding visit for those seeking a hidden gem.
You can find more information about the various river beaches, or 'praias fluviais,' in the Serra da Estrela region, including Loriga, by visiting external resources such as visitseia.pt or visitportugal.com.


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