São Pedro do Sul in one day: three waterfalls, thermal baths and a swing over the valley

Three waterfalls, a thermal town, and two schist villages fit into one day. The route runs along two mountain ridges in the center of Portugal, Serra da Freita and Serra da Arada, in the São Pedro do Sul region. From Porto it takes less than an hour and a half to get here, with asphalt almost all the way to the last parking area, after which gravel roads and stone trails begin.

This route is for those who love mountains, water, and empty roads. You will see three natural pools, swing on a swing over the Vouga River valley, stop by thermal springs, and drive along the winding Estrada do Portal do Inferno. Entry to all stops is free; you will pay for overnight stays, gas, and thermal baths.

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What to see in the São Pedro do Sul region

💡 In short:

• Take a car and leave Porto early in the morning: by midday a crowd gathers at Poço Azul.
• For each waterfall you need shoes with good tread; the descents are rocky and sometimes wet.
• Access, roads, and parking: 09/2026, verified on Visit Portugal

Below, all ten stops are listed in route order. The table helps you quickly understand what awaits you at each point.

1. Poço da Barreira waterfall

Poço da Barreira is the first stop on the route. You park by the bridge and descend along the stream on a path: this way you reach the natural pool in a couple of minutes. To see the waterfall in full, cross the river over the rocks and climb higher up the slope. It sounds risky, but in reality the crossing is easy.

There is no convenient water entry here. Swimming requires some skill: the boldest jump into the pool from the upper level or slide down a small stream. Bring non-slip shoes.

© Vitor Oliveira from Torres Vedras, PORTUGAL · CC BY-SAPhoto: Vitor Oliveira from Torres Vedras, PORTUGAL, CC BY-SA (https://creativecommons.org/licenses/by-sa/2.0), Wikimedia Commons

When we visited, a canyoning group was at the waterfall: local companies run such descents in this area by prior booking. If you want to try canyoning, check out tours in the region on GetYourGuide.

2. Poço Negro waterfall

Poço Negro is hidden deeper in the mountains. At some point the asphalt ends, and a steep descent on a gravel road with potholes begins. You should only leave your car by the gate if you have high clearance; otherwise you will have to walk from the upper parking area.

From the cliff by the gate you can see the waterfall and the surrounding forest. A trail leads down through the picnic area: find the descent to the left of it, and after that the off-road section begins. The place is worth the effort.

© Josefgmachado · CC BY-SAPhoto: Josefgmachado, CC BY-SA (https://creativecommons.org/licenses/by-sa/3.0), Wikimedia Commons

The name Poço Negro translates as "black pit." The spot was named that because of its depth. The water color is bright emerald, and the rocks around the pool make it easy to enter the water. The water is very cold, almost icy, so go in gradually.

Next to the waterfall there is a flat picnic area. It is convenient to return there after swimming and have a snack.

3. Baloiço de São Pedro do Sul swing

Swings are installed at many viewpoints in Portugal, and this place is one of them. From here you get a panorama of the São Pedro do Sul region and the Vouga River valley. The swing is right by the road, so the stop takes only a few minutes.

4. Poço Azul waterfall

The word azul means "blue," but the water here is just as green as in the previous pools. The waterfall itself, however, looks different: it is a series of low cascades with small basins that are convenient for swimming. The pools are filled by a mountain stream, so the water is just as cold.

Pay attention to the boulders by the water. They have engravings on them: large eyes and female silhouettes. They were carved into the granite by local sculptor Custódio Almeida in the early twenty-first century.

Poço Azul is popular. In the heat after midday there is almost no free space on the rocks and in the basins. The path to the cascade is well maintained: about five hundred meters along a trail, then a descent down stone steps.

5. The town of São Pedro do Sul

The town is small: fewer than four thousand people live here. The main reason to stop by is the thermal springs (Termas de São Pedro do Sul). Water baths appeared here back in Roman times, more than two thousand years ago.

© Vitor Oliveira from Torres Vedras, PORTUGAL · CC BY-SAPhoto: Vitor Oliveira from Torres Vedras, PORTUGAL, CC BY-SA (https://creativecommons.org/licenses/by-sa/2.0), Wikimedia Commons

The healing springs were also popular later, especially with Portuguese nobility. Today the São Pedro do Sul thermal baths are considered the largest in the country and among the best in Europe.

The sulfurous, low-mineral water comes out of the ground very hot. To make it suitable for bathing, the water is passed through a heat exchange system and cooled to a comfortable temperature. The hot springs are used for respiratory problems and joint treatment.

The thermal area is well developed: old and modern hotels line the riverfront, and cafes and souvenir shops operate there.

Want to take a walk? From the thermal area to Parque Urbano das Nogueiras runs the Ecopista do Vouga, a former railway line. You can walk it or ride a bike. On the approach to the park you will see an old arched bridge.

The park itself is well equipped: sports and playgrounds, a river beach with an old mill, and picnic areas in the shade of walnut trees.

Take a look at the historic center too. On Largo de Camões stands the town hall, and nearby are facades decorated with colorful tiles. Stop by the pastry shop under the yellow umbrellas and try the local baked goods.

Then walk down to Igreja de Santo António with its white-and-blue azulejos on the facade and to Igreja de São Pedro, after which the town is named. Between the churches, do not miss the Painéis de Azulejos, tile panels framed by the square. These spots are easy to find by their names on the map.

6. The village of Fujaco

Fujaco is a tiny schist village on a slope. Fewer than twenty people live here, along with almost as many cats. Already on the approach to the village you will see the folds of the mountain and schist roofs.

Mobile reception in the village is almost nonexistent. But there are two hotels, a restaurant, a small church, and a pool with clean river water. It is a calm place to exhale and reset.

7. The village of Pena

Pena is another schist village in the region. Only two families live here, and both run local restaurants. Judge how busy it is by the number of cars in the parking lot: in season it is full.

After lunch, walk to the geosite Livraria da Pena. Vertical quartzite slabs stand on the slope and resemble giant books. The spot is marked on the map, and locals will point the way.

8. Capela de São Macário chapel

The eighteenth-century chapel stands on a mountain slope. It is believed that a cave where Macarius lived was nearby. He was later recognized as a saint and the patron of this mountain range.

© Vitor Oliveira from Torres Vedras, PORTUGAL · CC BY-SAPhoto: Vitor Oliveira from Torres Vedras, PORTUGAL, CC BY-SA (https://creativecommons.org/licenses/by-sa/2.0), Wikimedia Commons

At the top of the São Macário hill stands a sanctuary (Santuário de São Macário). To protect the shrine from the wind, it was enclosed with a stone wall. A short road leads to it from the chapel.

9. Baloiço do São Macário viewpoint

Next to the church there is a viewpoint with swings. From here you get a panorama of the ridge and the valley. The stop is short, but the views are worth it.

10. Estrada do Portal do Inferno road

If you still have energy, take a drive along the road called the "gates of hell." In the past there were no guardrails by the cliffs, and the road was considered dangerous. Now you can drive it calmly and enjoy the mountain scenery and the winding switchbacks.

© Hélder Silva · CC BYPhoto: Hélder Silva, CC BY (https://creativecommons.org/licenses/by/3.0), Wikimedia Commons

The road leads to Arouca. Near the town there is a geopark with the longest suspended pedestrian bridge in Portugal and the Passadiços do Paiva trail. We wrote about this in our article on hiking in Portugal. If you have time, extend your trip by a day.

A car will be useful for this section: rent a car on DiscoverCars.

Where to stay?

São Pedro do Sul has many hotels, including ones with spas. You can book a room in town and also try the thermal baths. You can browse hotels in São Pedro do Sul on Trip.com.

An overnight stay in a remote mountain village will also leave an impression: schist houses in Fujaco can be found on the same platform.

If you are planning the nine-kilometer route along the Paiva trail, book accommodation in Arouca. It is a small town with narrow streets and cafes. From Arouca to Porto it is about an hour's drive, and to Lisbon more than three hours.

© Lusitana · CC BYPhoto: Lusitana, CC BY (https://creativecommons.org/licenses/by/2.5), Wikimedia Commons

All the stops can be covered in one day, and the evening is best ended in the thermal town or in a quiet mountain village.

⁉️🤔 Frequently asked questions

When is the best time to visit São Pedro do Sul?

The most comfortable time to come is late spring or early autumn. In summer, Poço Azul gets too crowded after midday, and the water in the pools stays cold in any heat. In July and August, leave in the morning and plan your swim before noon.

Can you swim at all the waterfalls?

Swimming is possible in three pools: Poço da Barreira, Poço Negro, and Poço Azul. The most comfortable is Poço Azul, which has basins and steps. At Poço Negro the water is almost icy, so you need to go in gradually. At Poço da Barreira there is no convenient water entry, so you will need some skill.

Do you need a car for this route?

Yes, the route cannot be done without a car. The points are tens of kilometers apart on mountain roads, and public transport runs rarely. Each waterfall and village has a parking area, but the last stretch to Poço Negro is a gravel road that is best tackled with high clearance.

How long does the whole route take?

You can comfortably cover all the stops in one day if you start from Porto in the morning. The waterfalls and villages take more time than the town. The evening is best spent at the thermal baths in the town center, and the Paiva trail in Arouca is better done on another day.

Are the thermal baths open to tourists?

The thermal resort in São Pedro do Sul welcomes guests and offers therapeutic baths. Check the schedule of treatments and prices on the resort's official website before your trip: they change by season.

In short: what to book

The São Pedro do Sul route is a one-day trip from Porto. Waterfalls, thermal baths, and villages are easy to combine with an overnight stay in the mountains.

• If you are going for a day from Porto: rent a car and leave at dawn.
• If you want to combine swimming and treatment: book a hotel with thermal baths in São Pedro do Sul.
• If you love quiet: look for a schist house in Fujaco.
• If you are going for the Paiva trail: stay in Arouca.

Book your hotel in São Pedro do Sul in advance: in summer, thermal hotels sell out quickly.