5.0
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424
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24
runs
Jogging around Albufeira de Lakea Comprida offers routes through a high-altitude environment within the Serra da Estrela mountain range. The landscape features a large dam, originally a natural lagoon of glacial origin, surrounded by crystal clear waters. The area is characterized by glacial valleys, erratic granite blocks, and other high-altitude lakes, providing varied terrain for running.
Last updated: May 11, 2026
8
runners
21.4km
02:41
470m
470m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
7
runners
4.89km
00:40
190m
190m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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32
runners
25.5km
04:07
1,520m
1,520m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
6
runners
19.5km
02:45
800m
800m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
38
runners
25.3km
04:01
1,470m
1,470m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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The way is arduous, but the destination is worth it.
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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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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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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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This reservoir, part of the Serra da Estrela hydroelectric system, is a popular tourist destination. Part of this attraction comes from 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. The conical spillway was little known until photos of the hole went viral in 2016. 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 is a stunning place to visit, not only for the combination of human intervention on nature, but also for the surrounding landscape. The trail from Lagoa Comprida leads here is truly beautiful in any season. Bring windbreaker and water.
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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 Serra da Estrela Natural Park is something truly special. This 1,000-square-kilometer park, spread across six municipalities, was the first and currently the largest protected natural park in Portugal. It is home to the highest point on the Portuguese mainland, the country's only ski slope, the source of two important rivers, and a fascinating, alpine-like landscape formed by glaciers.
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At exactly 1993 meters above sea level, Torre is the highest point in mainland Portugal, where the only ski resort is located. The landscape on the upper plateau of the Serra da Estrela is like a sprinkling of granite rocks over low scrub and patches of snow and ice, which the sun threatens to melt soon in the summer and which always returns the following winter. In winter, it sometimes becomes inaccessible.
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There are over 25 running routes around Albufeira de Lakea Comprida, catering to various fitness levels. You'll find 1 easy route, 10 moderate routes, and 14 challenging trails for more experienced runners.
Yes, while many routes in this high-altitude region are moderate to difficult, there is at least one easy running route available. These easier paths often follow the waterfront of Lagoa Comprida, providing accessible terrain suitable for families looking for a gentle jog amidst the stunning scenery.
The trails around Lagoa Comprida are generally suitable for dogs, allowing them to enjoy the high-altitude environment. However, some sections might have loose stones or varied terrain, so ensure your dog is accustomed to such conditions and always keep them on a leash, especially in areas with wildlife or other visitors.
Yes, many of the running routes in Albufeira de Lakea Comprida are circular, offering varied loops through the landscape. A popular example is the Covão dos Conchos loop from Albufeira de Lagoa Comprida, which is a challenging 13.3-mile (21.4 km) trail that takes you past the unique spillway.
Runners can experience several unique natural attractions. The most iconic is the Covão dos Conchos, a fascinating spillway often described as a 'hole' in the lake. You can also observe intriguing fields of erratic granite blocks, remnants of glacial activity, and visit the source of the Mondego River, where you'll find distinctive rock formations like the 'old man's head'.
Parking is generally available near Lagoa Comprida, especially around the main dam area, which serves as a common starting point for many trails. As this is a popular outdoor destination, designated parking areas are usually provided for visitors accessing the trails.
While Albufeira de Lakea Comprida is located in a high-altitude mountain range, public transport options are limited. It is generally recommended to travel by car to access the trailheads, especially for routes starting directly from the lake or deeper within the Serra da Estrela.
The high-altitude setting of Lagoa Comprida (1600 meters) provides cooler temperatures, making it particularly comfortable for jogging during the warmer months. Spring and autumn offer pleasant conditions with vibrant scenery, while summer provides a refreshing escape from the heat of lower altitudes. Winter running is possible but requires appropriate gear due to snow and colder conditions.
The region offers a variety of terrain. You'll find well-defined paths along the waterfront, but also more challenging sections with loose stones, especially on routes leading to features like Covão dos Conchos. The landscape includes glacial valleys and high mountain environments, providing a diverse and engaging running experience.
Absolutely. Given its high-altitude setting within the Serra da Estrela, many running routes offer breathtaking panoramic views. The trails often traverse ridges and elevated sections, providing stunning vistas of the glacial valleys, the dam, and the surrounding mountain landscape.
The area is highly rated by the komoot community, with an average score of 5.0 stars from over 3 reviews. Runners often praise the stunning high-altitude scenery, the unique natural features like Covão dos Conchos, and the invigorating challenge of the mountain trails. Over 400 runners have used komoot to explore this region.
The dam concentrates crystal clear, cold water from the snowmelt in Serra da Estrela. While the water is pristine, it is also very cold due to its high-altitude origin. Some visitors do engage in wild swimming, but be prepared for very chilly temperatures.
Given the high-altitude setting, temperatures can be cooler than expected, even in summer. It's advisable to wear layers that can be adjusted, and always carry a windbreaker or light jacket. Sturdy running shoes with good grip are recommended due to varied terrain, which can include rocky or uneven sections.


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