The Yvelines kick off October with science, music and architecture on the agenda: we’ve spotted ten outings to do in the 78 ce week-end of October 3–4, 2026.
The 78 department has some nice cards up its sleeve for this weekend of October 3–4, 2026, offering a mix of science curiosities for kids, French chanson concerts, and heritage excursions across the Yvelines.
The Yvelines (78) are easing into autumn, and the program is following suit. For this weekend of October 3-4, 2026, we’ve pulled about a dozen ideas from our latest outings, from the Seine Valley to Saint-Quentin-en-Yvelines. There’s something for both families and concertgoers alike.
The Fête de la Science has just kicked off and is making stops in several municipalities in the 78, while French song continues to tour around Poissy and Conflans-Sainte-Honorine with L'Estival. We also have in store an exhibition where contemporary design makes itself at home in Le Corbusier. The rest of the selection is just below.



Flea markets in Houilles, Limay, and Chatou: Yvelines’ markets this weekend
The flea markets and garage sales in Yvelines (78) are turning up the tempo this weekend of October 3–4, 2026, with the 52nd Houilles Braderie, Limay’s first major flea market, and the final days of the Chatou Fair. [Read more]



Free castles and museums in Yvelines this Sunday, October 4, 2026 — the first Sunday of the month.
Free museums and monuments in the Yvelines open their doors to us on this first Sunday of the month: this Sunday, October 4, 2026, several cultural sites in the 78 can be visited without spending a penny. Here’s a roundup of the best free options to grab. [Read more]



Science Festival 2026: workshops, tours and experiments to discover in Yvelines (78)
Laboratories, media libraries, museums and schools are taking part in the 2026 Science Festival in Yvelines. Discover the activities planned in the 78 from October 2 to 12. [Read more]



This town in Yvelines is staging a grand medieval festival, complete with a costume parade and a livestock market.
In Yvelines, head to Rambouillet to celebrate the Fête de la Saint-Lubin this Saturday, October 3, 2026. On the agenda: free activities and a grand medieval festival open to all. [Read more]



Foire de Chatou 2026: more than 300 exhibitors and thousands of treasures to hunt for in late September
On the Île des Impressionnistes, the Chatou Fair once again casts its charm on bargain hunters from September 25 to October 4, 2026, for its 111th edition. Antique furniture, jewelry, vintage fashion, collectibles and curiosities are up for grabs from 300 exhibitors hailing from across France. [Read more]



L'Estival 2026 in the Yvelines: Selah Sue, Julien Clerc, Yannick Noah... the lineup
Calling all francophone music fans! L’Estival returns to the Yvelines with a brand-new, 39th edition running from September 25 to October 10, 2026 in Poissy, Achères, and Conflans-Sainte-Honorine. What’s on the lineup? Gigs by The Wampas, Selah Sue, Julien Clerc, Yannick Noah, plus Gildaa and Juste Shani. [Read more]



Saint-Germain-en-Laye (78) celebrates the 2026 Science Festival
The 2026 Science Festival settles in Saint-Germain-en-Laye, in the Yvelines, with a host of activities open to the public from October 2 to 12, 2026. Between experiments, exchanges and discoveries, the event puts scientific culture within reach of everyone in a city with a rich heritage. [Read more]



Mantes-la-Jolie (78) celebrates Science Festival 2026 with a planetarium and a celestial show
The 2026 Science Festival returns to Mantes-la-Jolie (78) with a show dedicated to celestial storytelling and mobile planetarium sessions on October 6 and 8. The program features 360-degree projections, music, theatre and a scientific journey to the heart of the stars, available by reservation. [Read more]



Dynamik Parc, the multi-activity park in the Yvelines that’s going to blow you away
Installed quietly this summer at the heart of the Saint-Quentin-en-Yvelines Leisure Island, Dynamik Parc unveils a unique, multi-activity park dedicated to sport and recreation. Electric Drift Kart, Laser Tag, Bubble Foot, Archery Game, Big Football, VR, Hado, and other self-guided experiences are on the menu for those eager to discover. [Read more]



Halloween 2026 at France Miniature: an on-site investigation in the park and a whirlwind tour of France in a day
For Halloween 2026, France Miniature is transforming itself to offer you a spine-tingling experience: but fear not, this experience remains family-friendly! Dash over to discover the park, transformed, from October 3 to November 1, 2026. [Read more]



Where to dine in Yvelines? Top restaurant picks in the 78, tried and trusted
There's no shortage of good places to eat in the Yvelines. If you'd like to discover the best restaurants in the 78 department, here we go! [Read more]



Where to stay in Yvelines? Hotels, bed and breakfasts, and campsites in the 78 department.
The Yvelines, with its lush green landscapes and rich heritage, offers the ideal break just a few kilometers from Paris. Whether you're looking for a bucolic setting, a warm atmosphere or immersion in the heart of nature, there are several options available to visitors in search of escape. [Read more]



Ten offbeat parks and gardens in Yvelines, treasures to discover
What if we set off on a stroll to discover the loveliest original parks and gardens in Yvelines? From hidden, unique, historic spots to outright quirky or simply one-of-a-kind places, the 78 has no shortage of unusual gems for anyone looking to stray off the beaten path. We’re unveiling 10 parks, gardens, and green spaces to explore in the department. [Read more]



Where to have a good brunch in the Yvelines? Our top picks in the 78
Whether you live in the Yvelines or are just passing through, discover our top brunch spots in the 78. [Read more]



Where to have a good brunch in Versailles in the Yvelines? Our top picks in the 78
Looking for a good brunch in Versailles? Discover our top picks in the royal city of Yvelines, including artisan coffee shops, all-you-can-eat options, and family-friendly spots! [Read more]



What to do in Yvelines (78)? Heritage, good addresses and activities, ideas for outings
Want to get to know Paris Region better? This time, we're taking you to the Yvelines to discover its heritage, places to visit, must-do activities and the best deals of the moment. From castles to walks and good addresses, here's what's in store for you in the 78 département. [Read more]



Glorious Escape Game in Vélizy: the go-to spot for fun with friends or family in Yvelines
Glorious Escape Game, based in Vélizy-Villacoublay (Yvelines), offers nine escape rooms: The Emperor's Heritage, Django, Asylum, Lost, The Anubis Stone, The Haunted House, Walking Dead, The Relics of Death, and Pirate: The Locket of Eternal Life. [Read more]



The most beautiful villages in the Yvelines, 7 must-see nuggets
Looking for a change of scenery less than an hour from Paris? The Yvelines (78) region is brimming with charming villages full of character. From Rochefort-en-Yvelines to Montfort l'Amaury, discover 7 Yvelines nuggets combining historic heritage and bucolic surroundings, all year round. [Read more]
Do remember to double-check opening hours before you head out, as some venues are still adjusting their entry policies this summer.
Enjoy your weekend in the Yvelines!
Dates and Opening Time
From October 3, 2026 to October 4, 2026
Recommended age
For all















