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Espace Mittelland

District de Porrentruy

Attractions and Places To See in District de Porrentruy - Top 20

Best attractions and places to see in District de Porrentruy include a rich tapestry of historical landmarks, captivating natural landscapes, and vibrant cultural institutions nestled in the Swiss Jura. The region is characterized by its well-preserved architectural heritage, including charming old towns and significant historical sites. Visitors can explore diverse natural features, from rivers and lakes to caves and mountain passes. This district offers a blend of historical depth and natural beauty for exploration.

Best attractions and places to see in District de Porrentruy

  • The most popular attractions is Saint-Ursanne Old Town and the Doubs River, a settlement known for its historic charm and picturesque medieval appearance. From the opposite bank, there are great views of the historic town, especially when crossing the stone bridge and entering the city through its gates.
  • Another must-see spot is St. Ursanne Stone Bridge, a bridge that has crossed the Doubs near St-Ursanne since 1728. This four-arched bridge is a cultural asset of national importance, offering a significant historical landmark within the medieval village.
  • Visitors also love Lucelle Lake, a scenic lake located in a protected natural area near the French border. Its banks, overgrown with reeds and trees, provide a wild and romantic character, ideal for relaxation and observing waterfowl.
  • District de Porrentruy is known for its notable landmarks, historical sites, and natural features. The region offers a variety of attractions to see and explore, from ancient castles and botanical gardens to impressive caves and river landscapes.
  • The attractions in District de Porrentruy are appreciated by the komoot community, with 99 highlights and 190 photos shared by visitors. These spots have collectively received 335 upvotes, indicating their popularity among outdoor enthusiasts.

Last updated: May 9, 2026

Saint-Ursanne Old Town and the Doubs River

Highlight • Settlement

From the opposite bank you have a great view of the historic town of Saint-Ursanne. A sublime moment when you cross the stone bridge and through the gate into the city.

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St. Ursanne Stone Bridge

Highlight • Bridge

With the blessing of the bridge saint Nepomuk, a stone structure has been crossing the Doubs near St-Ursanne since 1728.
Apparently, up until the 17th century, the wooden footbridge in St-Ursanne had to be rebuilt after every flood before the stone bridge was built. The four-arched bridge is now a cultural asset of national importance and is protected accordingly.

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Lucelle Lake

Highlight • Lake

Beautiful lake right on the border with France. The banks, overgrown with reeds and trees, give the water a wild and romantic character. Here you can unwind in nature and watch waterfowl such as ducks and gray herons.

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Col de la Croix (Jura, 789 m)

Highlight • Mountain Pass

Small pass in the Jura between Saint-Ursanne and Courgenay. Nice descent to the Doubs to Saint-Ursanne. More information: quaeldich.de/paesse/col-de-la-croix-jura.

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Doubs

Highlight (Segment) • River

The Doubs turns after its source first northeast through Pontarlier, flows through in its course the border reservoir Lac de Moron in the direction of Delémont, where he forms the border with Switzerland from Les Brenets. It crashes over the Saut du Doubs, a 27 m high waterfall, and then flows on a short piece of about 29 km entirely on Swiss territory. This section of the river is called Clos du Doubs. After Saint-Ursanne, the river changes direction to the west and leaves the Swiss territory at Ocourt and La Motte on the Swiss side and Brémoncourt on the French side.
A special feature is the border of the Doubs along the French-Swiss border. Unlike in rivers otherwise common, the border does not run in the middle of the river, but the Doubs belongs there entirely to France. This resulted from treaties between the Prince-Bishop of Basel and the King of France.
Flowing west from Saint-Ursanne, the Doubs returns to France and flows below Saint-Hippolyte, where it takes on Dessoubre on the left, through a Montagnes du Lomont valley north to Audincourt. Here he takes right after the Allaine, then turns in its lower reaches to the southwest and strives over Baume-les-Dames, Besançon and Dole, where he takes on the left Loue, the Saône, in which he in 170 m height in Verdun-sur-le-Doubs about 16 km northeast of Chalon-sur-Saône opens.
Source: Wikipedia

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Three Powers Boundary Stone

Highlight • Monument

An old border demarcation marker

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Porrentruy Castle

Highlight • Castle

Well preserved late medieval to early baroque castle, with some long-defunct walls still intact. Worth the detour to check out the old tower and the idyllic location.

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Mont Renaud Observation Tower

Highlight • Viewpoint

The Mont Renaud Observation Tower is a wooden tower built in 2001 on the site of a former military observation post. It offers a panoramic view of the Vosges and the Belfort gap. A great place to take a break and admire the views during your run.

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Porrentruy Botanical Garden

Highlight • Natural Monument

The botanical garden in Porrentruy is one of the oldest of its kind in Switzerland. It was created in 1798 by order of Paris after the city was annexed by France. The beautiful garden with different plant species from all over the world is now part of the Nature Museum.

You can find more information at: jurassica.ch/fr/Jardin-botanique.html

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Footbridge Over the Largue

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In 2012, the Command of Territorial Region 1 made engineers available to rebuild the observation post identically and to develop an educational trail of about 300 meters, including a pedestrian bridge - required by law - made of untreated fir on the Largue stream. But already in 2020, this gateway was showing signs of weakness and was no longer practical.
From August 5 to 14, 2020, the Swiss section of the Swiss KM0 Association was able to benefit from a detachment of engineer troops under the command of Division Chief Yvon Langel to replace the defective bridge.

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Hiking in District de Porrentruy

MTB Trails in District de Porrentruy

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Puffin
March 13, 2026, Mont Renaud Observation Tower

Observation tower with a great view of the Vosges Mountains and the Swiss Jura.

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Ralph
June 16, 2025, Lac de Lucelle

Idyllically situated at the end of the Lützeltal.

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Nice col between Courgenay and St Ursanne. Not long but can be very hard especially when starting from St Ursanne

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The sculptures are beautifully crafted and transport you back to your childhood. You immediately start discussing fairy tales from the past.

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nice climb

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Source: Wikipedia article The Mont Renaud observation tower is located in the municipality of Boncourt in the canton of Jura. The observation tower was built in 2001. The steel/wooden tower is about 15 meters high. 60 steps lead to the observation platform at a height of 12 meters. The platform offers a view over the various hills of the Jura to the Vosges. The observation tower can be reached from Boncourt in about 15 minutes

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Observation tower on Mont Renaud with a view of France (Vosges) and the Jura

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While the prosperous times in the town of Lucelle are over, the Lac de Lucelle is a nature reserve that captivates with its peace, idyll and beauty. The lake can be easily walked around on a well-developed nature trail, and there are many benches where you can watch the ducks and fish in the lake.

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Frequently Asked Questions

What historical sites can I explore in District de Porrentruy?

The district is rich in history. You can visit the imposing Porrentruy Castle, a former residence of the Prince-Bishops of Basel, with parts dating back to 1271. The Old Town of Saint-Ursanne is a picturesque medieval village on the Doubs River, known for its historic charm and the St. Ursanne Stone Bridge. Additionally, the entire Old Town of Porrentruy is recognized for its well-preserved architectural heritage, featuring baroque townhouses and monumental fountains.

Are there natural attractions suitable for families in District de Porrentruy?

Yes, several natural attractions are great for families. Lucelle Lake offers a scenic and protected natural area perfect for relaxation and observing waterfowl. The Doubs River provides beautiful stretches for walks. For a unique experience, the Préhisto-Parc in Réclère features large dinosaur models in a forest setting, and the Ponds of Bonfol are a nature reserve.

What kind of outdoor activities are available near the attractions?

The District de Porrentruy offers a variety of outdoor activities. You can find numerous hiking trails, including easy loops around places like the Étangs de Bonfol or the Porrentruy Castle. For more options, explore the easy hikes in District de Porrentruy. Cycling is also popular, with routes ranging from moderate to difficult, such as those found in the cycling guide for the district.

Where can I find scenic viewpoints in the region?

For panoramic views, the Mont Renaud Observation Tower is an excellent choice. The Porrentruy Castle courtyard and the Réfous Tower also offer magnificent views of the town. Additionally, the Col de la Croix (Jura, 789 m) provides beautiful vistas, especially towards the Doubs and Saint-Ursanne.

Are there any unique cultural experiences in Porrentruy?

Porrentruy offers several unique cultural experiences. The Circuit Secret de Porrentruy is a guided tour system that allows visitors to discover normally inaccessible hidden spots within the old town, enhanced by sound and light. You can also explore the Uhrenweg (Watch Trail), which delves into the town's watchmaking history, starting with sundials and including the Porte de France tower clock.

What is the best time of year to visit District de Porrentruy?

The District de Porrentruy is enjoyable throughout the year, but spring and autumn offer particularly pleasant weather for outdoor activities and exploring the historical sites. The natural landscapes, such as Lucelle Lake and the Doubs River, are especially beautiful during these seasons with vibrant foliage or blooming flora.

Are there any museums or botanical gardens to visit?

Yes, the district is home to several notable cultural institutions. The Porrentruy Botanical Garden, established in 1798, is one of Switzerland's oldest, featuring around 800 Jura plants and a large collection of cacti. It's part of the Jurassica Museum complex, which focuses on the region's natural heritage, including dinosaur footprints. The Hôtel-Dieu Museum, located in an 18th-century building, includes a pharmacy museum with artistic carpentry.

What makes the Old Town of Porrentruy special?

The Old Town of Porrentruy is special due to its remarkably well-preserved architectural heritage. It was awarded the Wakker Prize in 1988 for its development and preservation efforts and is part of the Inventory of Swiss Heritage Sites. Visitors can wander through cobblestone streets, admire baroque townhouses, and see monumental fountains like the Fontaine des Samarites (1564) and Fontaine Suisse (1518).

Is there anything interesting about the Doubs River in this district?

The Doubs River is a significant natural feature, forming part of the border with Switzerland. The section within the district is known as the Clos du Doubs. It's notable for its scenic beauty and the fact that, unlike most border rivers, the Doubs entirely belongs to France in certain sections due to historical treaties, making it a unique geographical and historical landmark.

What do visitors particularly enjoy about the attractions in District de Porrentruy?

Visitors frequently praise the historic charm of places like Saint-Ursanne Old Town, especially the views when crossing the stone bridge. The serene and wild character of Lucelle Lake is also highly appreciated for relaxation and nature observation. Many enjoy the well-preserved historical architecture and the opportunities for peaceful walks along the rivers and through the old towns.

Are there any unique historical markers or monuments?

Beyond the castles and old towns, you can find the Three Powers Boundary Stone, an old border demarcation marker that once marked the corner of three different powers. The Porte de France, an important historical gateway in Porrentruy, also features a tower clock that is part of the

Are there cycling routes available in the District de Porrentruy?

Yes, the District de Porrentruy offers a variety of cycling routes. You can find options for both touring bicycles and road cycling, with routes ranging in difficulty. For example, there are challenging touring routes like the 'Porrentruy Castle – Shadoof well loop' or road cycling routes such as the 'Ascent to La Caquerelle – Rangiers Pass loop'. More details can be found in the cycling guide and road cycling guide for the district.

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Most popular attractions in District de Porrentruy

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