Best lakes around Sazes Da Beira are found within the Serra da Estrela region of Portugal, an area recognized for its varied aquatic landscapes. This location provides access to glacial lakes, river beaches, and natural pools. The region's geography features mountainous terrain and valleys shaped by ancient glaciers. These natural attractions offer diverse opportunities for outdoor activities and experiencing the natural environment.
Last updated: May 3, 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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Next to the Nave de Santo António, the Covão do Ferro or Padre Alfredo dam, inaugurated in 1956, uses a glacial cirque and collects water from the Alforfa stream. It was commissioned by Father Alfredo to supply electricity to the wool industry in Unhais da Serra. Unhais da Serra can be seen in the background.
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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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The Lagoa do Peixão, sculpted by ice from ancient times, has an almost mystical aura. In spring, the spectacle becomes even more mesmerizing, with thousands of dragonflies dancing on the water, while tree frogs croak on the edge of the lake, composing a perfect natural symphony. The view from here is breathtaking. The imposing rocky peaks of Fragão do Poio dos Cães and Cântaro Gordo emerge on the horizon, reminding you of the ancient glaciers that once shaped this stunning landscape.
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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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A beautiful walk, also suitable for a family with children. The gap to the power station is very special.
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Very interesting place. The hole in the lake, to get there you can take a 4K hike through this rugged environment.
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The region around Sazes Da Beira, within the Serra da Estrela, offers a diverse range of aquatic environments. You can find stunning glacial lakes like Long Lake (Lagoa Comprida) and Covão do Ferro Lake, as well as picturesque river beaches (praias fluviais) and refreshing natural pools. These include popular spots like Praia Fluvial de Loriga and the Natural Pools of Cortes do Meio.
Yes, a notable landmark is the Covão dos Conchos Trail, which leads to a fascinating funnel-like structure diverting water into Lagoa Comprida. This offers unique views and is a popular spot for photography. Many of the glacial lakes, such as Long Lake, also provide magnificent high-altitude scenery and viewpoints.
For swimming and relaxation, consider Vale do Rossim, which is a reservoir with a river beach, ideal for families and calm waters. Praia Fluvial de Loriga, set in a glacial valley, offers exceptionally clear water. The Natural Pools of Cortes do Meio, particularly Poço da Monteira, are also excellent for refreshing swims in a natural setting. Poço da Broca de Serapitel features an idyllic waterfall with a bathing pool.
The Serra da Estrela region offers a variety of hiking trails. You can find routes leading to glacial lakes, through river valleys, and to natural pools. For example, the Covão dos Conchos Trail is an easy walk, though rocky in parts. More challenging options like the Trail to the Upper Lakes are also available. You can find more detailed hiking routes, including options like the 'Ribeira de Loriga Route' and 'Tour da Eira', on the Hiking around Sazes Da Beira guide.
Yes, there are several easy and family-friendly options. Vale do Rossim is known for its calm waters and relaxing setting, suitable for families. The Covão dos Conchos Trail is generally considered easy, though good shoes are recommended due to loose stones. For more easy hikes, including the 'Tour da Eira' and 'Long Lake loop', refer to the Easy hikes around Sazes Da Beira guide.
The best time to visit largely depends on your preferred activities. For swimming and enjoying the river beaches and natural pools, the warmer months from late spring to early autumn (May to September) are ideal. For hiking and experiencing the dramatic glacial landscapes, spring and autumn offer pleasant temperatures and stunning scenery, though some paths might be wet after rain. Winter brings snow to the higher altitudes, transforming the landscape but making some trails more challenging.
Yes, the Serra da Estrela region offers cycling opportunities. While some routes can be challenging due to mountainous terrain, there are options for various skill levels. For specific cycling routes, you can explore the Cycling around Sazes Da Beira guide, which includes routes like the 'Bike loop from Albufeira de Lagoa Comprida'.
For hiking, especially on trails like the Covão dos Conchos Trail, good walking shoes with ankle support are highly recommended due to rocky and uneven terrain. Bring enough food and water, as amenities can be sparse in higher altitudes. Sun protection is essential during sunny weather, as many trails offer little shade. If visiting in spring or autumn, be prepared for varied weather conditions and potential wet paths.
Yes, some lakes have historical significance. Long Lake (Lagoa Comprida) is not only a natural glacial lake but also a key part of the region's hydroelectric power generation, with a dam expanded over decades. Covão do Ferro Lake was built to supply electricity to the local wool industry. Praia Fluvial de Loriga is recognized as one of Portugal's oldest river beaches, nestled in a historic glacial valley.
Visitors frequently praise the breathtaking high-altitude scenery, the unique glacial landscapes, and the refreshing clear waters of the river beaches and natural pools. Many appreciate the opportunity for invigorating swims and the peaceful, idyllic settings. The engineering marvel of the Covão dos Conchos and the dramatic views from various viewpoints are also highly regarded.
Parking is generally available near the more popular lake attractions and trailheads, especially at sites like Lagoa Comprida and Vale do Rossim. However, during peak season, spots can fill up quickly. It's advisable to arrive early, especially for popular river beaches and natural pools, to secure parking.
While Sazes Da Beira is a good starting point for exploring the Serra da Estrela, direct public transport to all individual lakes and remote trailheads can be limited. It's often easier to reach the main towns within the Serra da Estrela by bus, and from there, some popular spots might have local transport or require a car. Planning ahead and checking local bus schedules is recommended.


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