Festi'Vallée 2025: the popular festival returns to Igny (91) this autumn

On Saturday September 13 and Sunday September 14, 2025, the town ofIgny, in the Essonne department, welcomes you to Festi'Vallée, a weekend of events surrounding this major popular festival that's a must-see in the town. For this 10th edition of the event, over 10,000 people are expected to attend.

• To be read
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The Festi'Vallée 2025 program? Concerts, games, the Trifouillette (various running events for the whole family), street arts, comic book signings, a pyrotechnics show... To enjoy this great program, 100% free and accessible to all, come to Parc Saint-Nicolas, in Igny, all weekend long.

Festi'Vallée 2025 program:

Registration required

Igny has an incredible talent

• Talent contest for ages 8 and up.

La Trifouillette

• Nature races, 5 km, 10 km, 17 km and 26 km
• Children's races, 500 m, 1,300 m , 3,300 m

No registration required

• Games
• Book signing
• Pyrotechnics,
• Refreshments and catering
• Street arts
• Crafts...

If you don't have a car, or simply want to get there by public transport, Igny is accessible by Transilien line V (you'll need to make a connection beforehand from Palaiseau station, accessible by RER B, or Versailles Chantiers station, accessible by RER C, Transiliens N and U). Enjoy the festival!