4.0
(2)
16
riders
3
rides
Gravel biking around Porto De Mós offers routes through a distinctive karstic landscape, characterized by limestone ridges, rolling hills, and lush greenery. The region is home to the Parque Natural das Serras de Aire e Candeeiros, providing a network of trails. A notable feature for cyclists is the Ecopista de Porto de Mós, a repurposed railway line offering no traffic gravel bike trails through excavated tunnels and scenic views. This area provides varied terrain for off-road cycling, combining natural exploration…
Last updated: July 7, 2026
2
riders
28.2km
01:58
250m
250m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2
riders
43.2km
02:44
500m
500m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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1
riders
27.5km
01:53
410m
410m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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From the chapter house on the ground floor, a staircase leads up to the dormitory. This staircase was rediscovered during renovations beginning in 1930. Located on the first floor, the dormitory extends 66.5 meters in length and 21.5 to 17.5 meters in width along the entire east side of the medieval part of the abbey, thus covering an area of almost 1,300 square meters. In its current form, restored through renovation, it presents itself in its original medieval state. At the southern end, the dormitory opens with a large round-arched doorway to the northern transept of the church. A staircase formerly led down from there, as the Cistercian rule required two separate entrances to the communal sleeping quarters. At the northern end of the dormitory were the latrines, which—again according to a general rule of the order—had to be separated from the sleeping quarters by a separate room. The wastewater flowed into the abbey's garden on the north side. The monks slept together in the dormitory, fully clothed, separated from their neighbors only by a movable partition. The abbot alone had his own cell, located on the south side facing the church. This arrangement is typical of most Cistercian monasteries of this period. A narrow door in the center of the western side leads to a narrow spiral staircase, which today provides access to the kitchen, but in the Middle Ages led to the calefactory (warming room, see below). This staircase also provided access to the upper cloister. https://de.wikipedia.org/wiki/Kloster_Alcoba%C3%A7a
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The entrance to the chapter house features a particularly striking facade with staggered columns. The chapter house served as the meeting place for the monks and was, after the church, the most important room in the monastery. It bears this name because the chapters of the Rule of St. Benedict were read aloud there daily. Elections and similar communal ceremonies of the monks also took place there. In the entrance area to the chapter house is the gravestone of an abbot whose identity is no longer known. The floor of the chapter house was formerly completely covered with such gravestones, as a Cistercian rule from 1180 stipulated that abbots had to be buried in the chapter house, meaning that the monks made their decisions on the graves of their deceased abbots. This type of burial was a significant exception to the general Cistercian rule, which forbade the burial of monks within the monastery. That's why you'll find a door leading south in the southern transept called the Porta da Morte (Door of Death), because deceased monks were carried out through it for burial. https://de.wikipedia.org/wiki/Kloster_Alcoba%C3%A7a
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To the west of the new kitchen lies the refectory, the dining hall for the monks, a three-aisled hall measuring approximately 620 square meters (29 x 21.5 meters). Above its entrance, in medieval Latin, is the difficult-to-interpret inscription: "respicte quia peccata populi comeditis," meaning: "Remember that you are eating the sins of the people." The room impresses with its beautiful proportions. It has windows facing north and east, overlooking the new kitchen. On the west side, a stone staircase leads to the pulpit of the lector, who read from monastic texts during meals. The monks sat facing the walls and ate their meals in silence. The abbot sat with his back to the north wall, observing the proceedings. At the southern end of the west side, the refectory opens into the former medieval kitchen, now a side room leading to the cloister of the Cathedral of Afonso VI. A few meters further along, another opening can be found in the same wall, two meters high and 32 cm wide. It leads to the aforementioned side room, and there is no scientifically sound explanation for it. A long-standing legend claims that this opening served to monitor the monks' weight. They were supposed to pass through this door once a month, which is only possible by leaning sideways. If they were too heavy, they were put on a diet. The damage caused by the conversion of the refectory into a theater in 1840 (with 301 seats, 120 of which were in the galleries, and 5 boxes) was largely repaired during the restoration. https://de.wikipedia.org/wiki/Kloster_Alcoba%C3%A7a
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The exact date of the monastery kitchen's reconstruction is disputed, despite a date of 1712 inscribed within the kitchen. However, it is assumed that the new kitchen was completed before the construction of King Afonso VI's cloister, thus likely towards the end of the 17th century. In the center of the kitchen, a chimney was built over a base of approximately 3 x 8 meters and reached a height of about 25 meters. Two flanking chimneys of the same height flanked the kitchen, forming the highest point in the monastery's roofscape after the church and its nave. Such structures existed in Portugal only at the Convent of Christ in Tomar and the Royal National Palace in Sintra. The hearth of the main chimney is recessed to hold the embers, so that these facilities—after centuries of abstaining from meat—were now suitable for grilling and roasting whole cattle. A ditch of the levada, the artificial side channel of the Alcoa River, flows beneath the kitchen floor. On the west side of the kitchen are seven large stone basins, each with two spouts depicting mythical faces or grotesque masks. Water flowed into these tub-sized basins, fed by a channel running inside the wall. In 1762, the kitchen received its current tiles, which cover both the walls and ceiling. https://de.wikipedia.org/wiki/Kloster_Alcoba%C3%A7a
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Impressive work in an unexpected location. https://www.fatcap.com/article/pantonios-art-merges-with-water-in-new-creation-do-rio
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The first cloister was probably completed around 1240, along with the church, but it may have collapsed. It was replaced around 1308–1311 by the present-day Claustro de Dom Dinis, also known as the Claustro de Silencio (Cloister of Silence, because speaking was forbidden there). It has a circumference of 203 meters and an average height of 5 meters on the ground floor. At the beginning of the 16th century, a second story was added to the cloister by order of King Manuel I (1469–1521), giving it two levels. Access to the upper level of the cloister is via a spiral staircase in the northeast corner, which also connects the kitchen to the dormitory. https://de.wikipedia.org/wiki/Kloster_Alcoba%C3%A7a
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Fervença Power Station The Company and its Power Station will have contributed to Alcobaça being one of the places in Portugal that had electricity earlier. The Companhia Fiação e Veículos de Alcobaça settled in Fervença in 1875. The facilities were located next to the river and the old monks' dam, in order to use the energy of the river as a driving force. The Electric Power Station, whose building still stands in Fervença, was inaugurated in 1926 so that the Company's factories could start working with this new energy. It was a very modern building for the time and fits in perfectly with the industrial architecture, with its large glass windows that let you see the turbines inside. The Company, which operated until 1998 under the name COFTA, employed many people from various locations in Alcobaça and is still remembered by many with nostalgia. Source: Carvalho, L. (2008). Threads that Woven the City Curiosity/Challenge: In the center of Alcobaça there is another Electric Power Station that you can visit. Find out where it is located and visit it.
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A small and beautiful town with a beautiful monastery full of history
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This guide highlights 3 dedicated no-traffic gravel bike trails around Porto De Mós, offering a range of experiences from moderate to difficult. These routes are carefully selected to ensure a peaceful ride away from vehicular traffic.
The region of Porto De Mós, nestled within the Parque Natural das Serras de Aire e Candeeiros, features a distinctive karstic landscape. You can expect a mix of limestone ridges, rolling hills, and lush greenery. Trails often incorporate both paved and unpaved surfaces, with some routes like the Ecopista de Porto de Mós (Old Bezerra Railroad) offering unique experiences through excavated stone tunnels and scenic views of the Serra dos Candeeiros.
Porto De Mós offers enjoyable gravel biking experiences throughout much of the year. Spring and autumn generally provide the most pleasant temperatures for cycling. Summers can be hot, but early mornings or late afternoons are still viable. Winters are mild, making it possible to ride, though some trails might be wetter. The region's natural beauty is captivating in all seasons.
While this guide features routes of moderate to difficult grades, the region does offer options that can be suitable for beginners, particularly sections of the Ecopista de Porto de Mós. This former railway line is relatively flat and provides an ecological and scenic ride. For a moderately challenging route, consider the Fonte de Fanhais loop from Pataias, which covers nearly 28 km with manageable elevation.
The trails often pass through the stunning Parque Natural das Serras de Aire e Candeeiros, offering views of dramatic karstic landscapes and unique limestone formations. You might encounter viewpoints like Chão das Pias or Corredoura Viewpoint, providing panoramic vistas. The region is also known for its caves, such as the Grutas de Mira de Aire and Moeda Caves, which are significant natural attractions nearby.
Yes, gravel biking in Porto De Mós allows you to combine natural exploration with visits to historic sites. The Alcobaça Monastery – Alcobaça Castle loop from Alcobaça, for example, brings you close to the impressive Alcobaça Monastery. The region also features traditional villages and the Porto de Mós Castle, adding a rich cultural dimension to your ride.
Parking is generally available in the towns and villages that serve as starting points for these trails, such as Pataias, Alcobaça, and Pisões. Specific parking information for individual trailheads can often be found on local tourism websites or within the Komoot tour details when planning your route.
Many sections of the Ecopista de Porto de Mós are considered family-friendly due to their relatively flat and traffic-free nature. While the routes in this guide are rated moderate to difficult, families with older children or those comfortable with longer distances and some elevation gain might enjoy routes like the Monastery of Santa Maria de Coz – Prévia Trail loop from Pisões, which offers a scenic 27 km ride.
When cycling within the Parque Natural das Serras de Aire e Candeeiros, it's generally permissible to bring dogs, but they should be kept on a leash to protect wildlife and ensure the safety of other trail users. Always ensure you clean up after your pet. Specific rules might apply to certain protected areas or private properties, so it's good practice to check local signage.
Yes, all the routes featured in this guide are circular, allowing you to start and end at the same point. Examples include the Fonte de Fanhais loop from Pataias, the Alcobaça Monastery – Alcobaça Castle loop from Alcobaça, and the Monastery of Santa Maria de Coz – Prévia Trail loop from Pisões, providing convenient options for your gravel biking adventure.
The area is highly rated by the Komoot community, with an average score of 4.0 stars. Reviewers often praise the unique karstic landscapes, the tranquility of the no-traffic trails, and the opportunity to combine natural beauty with historical exploration. The Ecopista de Porto de Mós is frequently highlighted for its scenic tunnels and breathtaking views.


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