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Hauts-De-France

Saint-Omer

Attractions and Places To See around Saint-Omer - Top 20

Best attractions and places to see around Saint-Omer include a blend of historical sites, architectural landmarks, and unique natural landscapes. This town in northern France is characterized by its Gothic architecture, significant wartime history, and extensive wetlands. The region offers diverse opportunities for exploration, from ancient ruins to vast nature reserves.

Best attractions and places to see around Saint-Omer

  • The most popular attractions is Platier d'Oye National Nature Reserve, a nature reserve that serves as a crucial stopover for migratory birds. This 391-hectare reserve features dunes and wetlands, offering a rich ecosystem.
  • Another must-see spot is Romelaëre Ponds Nature Reserve, a nature reserve located in Clairmarais. This 108-hectare area is a remnant of 19th-century peat cutting, featuring ponds, canals, and diverse flora and fauna.
  • Visitors also love Saint-Omer Cathedral, a Gothic cathedral dating back to the 13th century. It houses the tomb of Saint Omer, medieval funeral slabs, an astronomical clock from 1588, and a painting by Rubens.
  • Saint-Omer is known for its historical sites, impressive architecture, and extensive nature reserves. The area offers a variety of attractions to see and explore, from ancient churches to unique wetland environments.
  • The attractions around Saint-Omer are appreciated by the komoot community, with over 100 upvotes and more than 40 photos shared by visitors.

Last updated: May 9, 2026

Platier d'Oye National Nature Reserve

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A paradise for ornithologists, the Oye Platier nature reserve is the first French stopover for many migratory birds. It has an area of 391 hectares. Shaped by the combined action of the sea, sand and wind, it is one of the must-see attractions on the Opal Coast.

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The Réservé Naturelle Nationale des Étangs du Romelaëre is a beautiful nature reserve located in Clairmarais, Saint-Omer and Nieurlet. This reserve, which covers approximately 108 hectares, is a remnant of an old peat cutting from the 19th century. The area consists of ponds, canals, bridges and chain pits, and offers a rich diversity of flora and fauna.

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Écardines Bunkers

Highlight • Historical Site

On the beach to the North of Les Ecardines there are some bunkers which belong to the Infantry Stützpunkt Martha. This strongpoint with 2 bunkers laying on the beach was part of the coastal defence and observation. One of the bunkers on the beach is a Regelbau R120 observation bunker with a 21P7 metal cupola on top. It has three entrances and a armoured close defence opening for a MG. A flanking wall lies next to it in the sand.
Next to the observation bunker is a Regelbau R630 type bunker. It housed a gun behind a big armoured plate. The armament of Strongpoint Martha consisted of MG’s in the R630 (MG stand for Machine Gewehr – machine guns), a 5cm M19 mortar, a 5cm gun, a 3,7cm Anti Tank gun, a MG-cupola, 2 Mortars and 5 MG’s.
This heavily defended strongpoint housed the observation bunker of HKB Murane, as well as the headquarters of the 8th kompagnie.
These bunkers, are part of a Luftwaffe Field Division instead of the Kriegsmarine.
InfStp. Martha has eight bunkers in total. The other bunkers of this strongpoint can be found further up the dunes.

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Saint-Omer station

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Located in Saint-Omer, France, the Gare de Saint-Omer has a rich history dating back to the 19th century. The first version of the station opened on September 1, 1848, as part of the railway line from Lille to Calais. The original building was modest and located outside the city walls, between the Porte de Lyzel and the Porte du Haut-Pont.
In 1904, a new, monumental station building was inaugurated, designed by the architect Clément Ligny. This building, with its neoclassical architecture, was built with high-quality materials such as blue stone from Soignies and white stone from Creil. The design reflects the grandeur of a 17th-century castle, complete with symmetrical pavilions and decorative elements such as triglyphs and pediments.

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Saint-Omer Cathedral

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You will see the tomb of St. Audomarus and the mausoleum of Eustache de Croy, chapter provost in Saint-Omer and bishop of Arras, a moving work by Jacques Dubroeucq (16th century). He shows the deceased kneeling, in bishop's robes, but also lying down and naked, as in classical antiquity. Note the 15th-century tombstones with inscriptions and the Descent from the Cross by Rubens (first bay of the right aisle). The tombs are 15th century, the alabaster statues 16th and 17th centuries. Other eye-catchers are the Madonna with cat (right aisle), the statue (13th century) of Notre-Dame des Miracles that attracts pilgrims every September, a Nativity of Christ from the 13th century and the tomb (8th century) of St. Erkembode, abbot of Saint-Bertin - here they leave shoes of children who have difficulty learning to walk. Above the astronomical clock (1558) a jaquemart tolls the hours (transept left). Above it is a rose window in flamboyant style. The statue group Grand Dieu de Thérouanne (13th century) stood 20 m above the portal of the cathedral of Thérouanne, which was destroyed by Charles V. The figures seem distorted, but the artist foreshortened them so that they had the correct perspective from below (transept left).

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Boat Lift of Fontinettes

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The Ascenseur à bateaux des Fontinettes is a historic boat lift in Arques, France. It was built between 1881 and 1887 and is the only remaining boat lift in France. It was built to connect the Lys River with the Aa, thus giving Lille and other inland cities a French route to the sea. The canal has a maximum height of 19 meters and a minimum height of 3 meters. It is a unique example of hydraulic engineering and works according to the principle of the vessels of Communicating and Archimedes' law. It can carry two boats at the same time and it takes about 22 minutes to raise or lower a boat. It is a popular tourist attraction and offers a fascinating insight into France's industrial history.

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Ruin of St Martin's church

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The Ruines de l’Abbaye Saint-Bertin are the remains of a Benedictine monastery in Saint-Omer, France. The monastery was founded in the 7th century by the Bishop of Thérouanne under the name Abbaye de Sithiu. The ruins of this monastery are located in Saint-Omer, Rue des Ruines Saint-Bertin. They were classified as a historical monument in 1840. The buildings are now in ruins, but are open to the public. The abbey was originally dedicated to Saint Peter and later to Saint Bertin. It was one of the three most powerful abbeys in the north of the kingdom. The monastery was surrounded by a wall and bordered the rivers Aa and Haute-Meldick. It consisted of three parts: the regular places, the peripheral districts and the outbuildings. The abbey church was located at the heart of the monastery and all the buildings were organized around it. The monastery also had a cloister, refectory, parlour, celler, chauffoir and kitchens. The ruins of the abbey offer a fascinating insight into the medieval history of France and are a popular tourist attraction.

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The Nature Barn

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La Grange Nature in Clairmarais is a hidden gem in the heart of the Marais Audomarois. This nature centre invites visitors to discover the lush landscapes, diverse flora and fauna of the region. With interactive exhibits, an educational garden and a child-friendly museum space, La Grange Nature offers a fun and educational outing for the whole family. Whether you come for a leisurely stroll, to take part in one of the many events, or simply to enjoy the serene surroundings, La Grange Nature is a destination worth visiting.

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Along the Houlle River

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Situated along the River Houlle, the Serques Marshes are part of the larger Audomarois Marshes. This area is renowned for its rich biodiversity and beautiful scenery. The nearby village of Houlle is a popular destination for tourists looking for a peaceful waterside holiday.
The River Houlle, a tributary of the Aa, flows through these marshes and provides a picturesque setting for walks and boat trips. The area is also known for the production of Houlle gin, a traditional spirit.
The marshes themselves are an important natural area and are home to a variety of plant and animal species. It is an ideal place for nature lovers and bird watchers.

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Clairmarais Church

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The Église Saint-Bernard de Clairmarais is a beautiful historic building located in Clairmarais, Pas-de-Calais. The church was built in the 19th century, with its consecration in 1876. It is an example of Gothic architecture, with a simple but impressive style. The church is located near the ruins of the old Cistercian Abbey of Clairmarais, making it a unique place to explore the history of the region.

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Via Francigena in the Pas-de-Calais – GR 145

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Via Francigena in the Pas-de-Calais – GR 145

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Tips from the Community

Jeannette
August 22, 2025, Ruine de l'église St Martin

Name is St. Bertinus

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Patrick
August 22, 2025, La gare de St Omer

After being closed for several years, the Saint-Omer train station has been given a facelift. The new, completely renovated building is dedicated to travelers, of course, but also to artists, craftspeople, entrepreneurs… La Station isn't just a station; it's "a space for innovation with a station inside." (c) https://nl.tourisme-saintomer.com/verwonderend/erfgoed-wonderen/meesterwerken-bewonderen/het-station-een-station-en-een-plaats-voor-innovatie/

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starting point for quite a few hikes

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nature reserve where you can take a short circular walk (1 hour) and go to the observatory

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sign with tourist information

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here is an information board with all tourist information

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Worth seeing small boat lift.

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Frequently Asked Questions

What unique natural landscapes can I explore around Saint-Omer?

The region is renowned for its unique wetlands. You can explore the vast, UNESCO-recognized Marais Audomarois, a network of waterways and market gardens best discovered by traditional wooden boats called "bacôves." Another significant natural area is the Platier d'Oye National Nature Reserve, a paradise for ornithologists and a crucial stopover for migratory birds, featuring dunes and wetlands. Additionally, the Romelaëre Ponds Nature Reserve offers a rich diversity of flora and fauna within its 108 hectares, a remnant of 19th-century peat cutting.

Are there historical sites related to World War II near Saint-Omer?

Yes, Saint-Omer has significant wartime history. Just outside the town, you'll find La Coupole, a dramatic WWII bunker built by the Nazis as a V2 rocket launch site. Today, it serves as an immersive history museum. Along the coast, you can also discover the Écardines Bunkers, remnants of the Atlantic Wall.

What architectural marvels should I visit in Saint-Omer?

The most prominent architectural marvel is the Saint-Omer Cathedral, a majestic Gothic structure dating back to the 13th century, showcasing various stylistic phases and housing a Rubens painting and an astronomical clock. The Jesuit Chapel, built between 1615 and 1640, features an elegant four-tiered facade of red brick and stone. Even the Saint-Omer station, opened in 1904, is noted for its grand Neoclassical architecture.

Are there family-friendly attractions around Saint-Omer?

Families can enjoy exploring the unique natural environment of the Marais Audomarois by hiring traditional wooden boats. The Boat Lift of Fontinettes, a historic hydraulic engineering marvel, can also be an interesting visit. Additionally, The Nature Barn is listed as a family-friendly facility.

Where can I learn more about the local culture and history of Saint-Omer?

To delve into the region's past, visit the Sandelin Museum, housed in an 18th-century townhouse, which features over 3,000 artworks and fragments from the Abbey of Saint-Bertin. The Jesuit Chapel, now home to the municipal library, contains thousands of ancient books, including a Gutenberg Bible. For an immersive experience into the unique wetlands, La Maison du Marais provides insights into the history and ecology of the Audomarois marshes.

What kind of outdoor activities can I do near Saint-Omer's attractions?

The area around Saint-Omer offers diverse outdoor activities, especially hiking, running, and cycling. You can find numerous routes, such as the "Le marais audomaroiss" loop for hiking or the "Les moulins Pidoux and the Coupole d'Helfaut-Wizernes" loop for running. For cycling, consider the "Circuit des Moulins et Secheries." You can explore more options and detailed routes in the dedicated guides for Hiking around Saint-Omer, Running Trails around Saint-Omer, and Cycling around Saint-Omer.

Are there any medieval ruins to explore in the area?

Yes, you can visit the impressive Ruins of Saint-Bertin Abbey, once one of northern Europe's most significant abbeys, offering a glimpse into medieval French history. Additionally, The Motte Castrale, a medieval castle mound, protected the cathedral and now houses a former military prison from 1762, offering panoramic views.

Where can I enjoy a peaceful walk or relax in a garden?

The Jardin Public (Public Garden) in Saint-Omer offers a tranquil escape. Located across from the cathedral, it features both an orderly French garden with a fountain and an English garden with a pond and an arboretum, perfect for a peaceful stroll.

What is the best way to experience the Audomarois Marshes?

The best way to experience the Audomarois Marshes is by taking a boat trip. You can hire traditional wooden boats called "bacôves" to navigate the extensive network of waterways. This allows you to observe the unique ecosystem, local market gardens, and abundant birdlife up close. La Maison du Marais is a good starting point for learning about the marshes and arranging boat hire.

What do visitors enjoy most about the attractions around Saint-Omer?

Visitors particularly appreciate the blend of historical depth and natural beauty. The Platier d'Oye National Nature Reserve is loved by ornithologists and nature enthusiasts for its rich biodiversity and peaceful trails. The Romelaëre Ponds Nature Reserve is praised for its natural setting and the unique experience of crossing a stream by chain ferry. The Saint-Omer Cathedral is admired for its impressive architecture and historical artifacts, including a Rubens painting.

Are there any unique engineering marvels to see?

Yes, the Boat Lift of Fontinettes in Arques is a unique example of hydraulic engineering. Built between 1881 and 1887, it's the only remaining boat lift in France and offers a fascinating insight into the region's industrial history, connecting the Lys River with the Aa.

Can I find local markets or vibrant town squares in Saint-Omer?

Absolutely. Place Foch is Saint-Omer's main square, known for hosting a colorful weekly market. It's surrounded by various restaurants, cafés, and bars, and features the elegant Town Hall, which includes a 19th-century theatre, making it a lively hub for locals and visitors alike.

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