Saint-Omer as a family: 10 perfect activities with children
Looking for a fun and (really) easy weekend out with the kids? Saint-Omer ticks all the boxes: listed marshes, clever museums, a historic train, fun centres... Here's how. 10 tried-and-tested ideas to keep the whole family busy, with rainy-weather alternatives and practical information for each activity.

Top 10 family activities in Saint-Omer
La Maison du Marais + traditional boat trip
Museo-experience immersive experience just a stone's throw from the centre bacôve (traditional boat) in the heart of 170 km of waterways in the Audomarois marshes. A great value for 3-4 year olds.
La Coupole: WWII bunker + 3D Planetarium
Major remembrance site (two routes on the Occupation and the space race) and 10K-3D planetarium for a journey through space that will amaze young and old alike. Perfect in case of rain.
CFTVA tourist train (Arques ↔ Lumbres)
Climb into a historic train in the heart of the Parc des Caps et Marais d'Opale (15km of track). A big hit for children aged 3 and over, and for all locomotive fans.
Romelaëre Ponds National Nature Reserve
Course accessible for pushchairs/PMR for ~2 km in the midst of ancient peat bogs that have become a haven for biodiversity - ideal as an introduction to birdwatching.
Ô Marais by ISNOR (Clairmarais)
Guided tours in bacôve, boat/canoe hirethemed tours (evening events, aperitifs...) and restaurant + cruise packages at La Baguernette, 5-10 min from Saint-Omer.





Saint-Omer public garden
Large central park (21 ha) with playground, picnic areas, arboretum, old glacis... A perfect free break between two visits.
Grange Nature (Clairmarais)
Educational area managed by Eden 62 : fun exhibitions, events, nature club - A great addition to the reserve.
Museum of the Hôtel Sandelin
Fine Arts & History in a listed town house adapted workshops and tours (see calendar).
Scénéo (aquatic centre, Longuenesse)
Leisure pool + aquatic classes (aquagym, aquabike...), long opening hours at weekends; perfect for letting off steam when the weather turns bad.
Dennlys Parc (Dennebroeucq)
Family theme park 25-30 min away: rides for young and old, picnic area, family services. A full day when the weather's fine.
Where to sleep in Saint-Omer with children
The flats Apart'Moment are designed to make life easier for families: independent arrival from 2 p.m., fitted kitchen (children's meals in 10 minutes), Wi-Fi + Netflix for the evening, cot/high chair on request, free laundry according to residence, and free secure parking (14 spaces). You are within walking distance of many activities and starting points. Book your accommodation.

Thanks to the Pays de Saint-Omer Tourist Office for the beautiful photos!