Best lakes around Paços Da Serra are situated within the Serra da Estrela Natural Park, an area known for its high-altitude landscapes. The region features several lakes, many of which have glacial origins or are significant artificial reservoirs. These bodies of water contribute to the area's geomorphological interest and provide diverse natural attractions. The lakes are integral to the natural park's ecosystem and offer various points of interest for visitors.
Last updated: May 19, 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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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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The lakes around Paços Da Serra are beautiful year-round, but the best time to visit for hiking and outdoor activities is typically during the warmer months, from late spring to early autumn. During this period, the weather is more stable, and the trails are generally more accessible. Winter can offer a unique, snowy landscape, but some paths might be challenging due to ice or snow, as noted by visitors to areas like Trail to the Upper Lakes.
The region is rich in natural wonders. You can witness the glacial origins of Long Lake, the largest reservoir in Serra da Estrela, with its wide, kilometer-long depression and visible glacial scars. A truly unique sight is the bell-shaped overflow at Covão dos Conchos, an artificial lagoon famous for its mesmerizing, sci-fi-like appearance as water drains into a tunnel. You can learn more about this fascinating overflow on Atlas Obscura.
Yes, several areas are suitable for families. The Vale do Rossim Reservoir is an excellent recreational area, offering opportunities for strolls and summer swims. It's a great spot to relax and enjoy nature. Visitors have also mentioned pedal boating as an activity there. While the trail to Covão dos Conchos is generally easy, some sections might require good shoes due to scree, so it's advisable for families with slightly older children.
The area offers a variety of hiking trails, ranging from easy walks to more challenging routes. For easy options, consider trails like the 'Vale do Rossim Reservoir loop' or 'Long Lake loop'. If you're looking for more challenging hikes, the 'Trail to the Upper Lakes' offers magnificent views but can be overgrown in parts and requires good orientation. You can find more details and routes in the Easy hikes around Paços Da Serra guide.
While the water in the mountain lakes, especially at higher altitudes like Long Lake, is often cool, some visitors do enjoy short swims. The Vale do Rossim Reservoir is particularly noted as a place for summer swims, offering a refreshing experience in its crystal-clear waters.
Yes, particularly near the Vale do Rossim Reservoir. The Vale do Rossim River Beach Restaurant is conveniently located right on the lake, offering a place to refuel after a hike or simply enjoy a drink with a view. It's a great spot to relax and grab a bite.
Beyond hiking, the region around Paços Da Serra is excellent for other outdoor sports. You can explore various mountain biking trails, with options ranging from moderate to difficult, such as the 'Serra da Estrela: Manteigas and Torre Loop'. There are also dedicated running trails available. For more information on these activities, you can check out the MTB Trails around Paços Da Serra and Running Trails around Paços Da Serra guides.
While specific regulations for dogs on every trail are not detailed, generally, natural parks in Portugal allow dogs on trails, often requiring them to be on a leash. Given the natural environment of Serra da Estrela, it's usually acceptable to bring your dog, but always ensure they are under control and respect local signage regarding protected areas or wildlife.
Even in summer, the altitude means temperatures can be cooler than expected, and weather can change quickly. It's advisable to wear layers, good quality hiking shoes (especially for trails with loose stones like those leading to Covão dos Conchos), and bring sun protection as many trails offer little shade. Always carry enough water and snacks.
Yes, the lakes have a significant historical context, particularly concerning hydroelectric generation. Long Lake, for instance, began construction in 1911 and was heightened in 1965 to its current impressive size. Similarly, the unique overflow at Covão dos Conchos was built in 1955 as part of the same hydroelectric system. The Vale do Rossim Reservoir area also has historical significance as prime high-altitude grazing land for transhumance herds before the dam was built.
Visitors consistently praise the magnificent landscapes and the fresh mountain air. The unique sight of Covão dos Conchos and the serene beauty of Long Lake are frequently highlighted. Many appreciate the opportunity for nature walks, photography, and the sense of tranquility found in the Serra da Estrela Natural Park. The recreational opportunities at Vale do Rossim Reservoir, including swimming and pedal boating, are also very popular.


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