The Night of the Monuments: a scavenger hunt and an evening guided tour at Royaumont Abbey (95)

Published by Graziella de Sortiraparis · Photos by My de Sortiraparis · Updated on March 27, 2026 at 06:05 p.m.
On April 17 and 18, 2026, Nuit des Monuments invites you to rediscover the Royaumont Abbey in the Val d’Oise after dark, with a guided night tour and an immersive scavenger hunt.

What if you rediscover history after dark? From 17 to 19 April 2026, the Nuit des Monuments metamorphoses the region’s finest castles and abbeys in Île-de-France into theatres of shadow and light. A one-of-a-kind nocturnal immersion where guided tours and special animations reveal the secrets of our heritage in a delightfully mysterious and unusual atmosphere.

In the Val d'Oise, the Abbaye de Royaumont began life as a beacon of the Middle Ages after its founding in 1228 by Louis IX and his mother Blanche of Castile. Following the Revolution, it was turned into a textile factory, before reclaiming its religious purpose in 1869 and then its cultural vocation in 1905 thanks to Jules Goüin. His grandson, Henry Goüin, transformed it into a welcoming retreat for artists and intellectuals. Declared a monument historique in 1927, it was designated in 1964 as a Centre Culturel de Rencontre, and it remains a timeless place of beauty, rich in history and evolution.

The Royaumont Abbey program

Embark on an adventure at Royaumont Abbey, for ages 8 and up! Torches will be provided for the Codex game. If you haven’t booked a team, the abbey will form the teams for you. On Friday 17 and Saturday 18 April, pick one experience of your choice:

  • Codex Game – from 8:30 PM to 10:30 PM
Step into an immersive journey through the site's iconic rooms and gardens. Team up to crack the puzzles and stand a chance to win a surprise prize for the fastest players.
  • Guided tour – 9:00 PM to 10:00 PM
Rediscover the Royaumont Abbey and its fascinating history on a guided nighttime tour.

L'Abbaye de Royaumont - les photos -  l'Abbaye de Saint-LouisL'Abbaye de Royaumont - les photos -  l'Abbaye de Saint-LouisL'Abbaye de Royaumont - les photos -  l'Abbaye de Saint-LouisL'Abbaye de Royaumont - les photos -  l'Abbaye de Saint-Louis Night of the Monuments 2026: Explore Ile-de-France’s Heritage Illuminated After Dark — Event Details
The Night of Monuments is returning from April 17 to 19, 2026. Following the Night of Castles and the Night of Museums, this event offers a unique opportunity to explore French heritage, with sites open late into the night! Discover the monuments of Île-de-France that will light up for a few special days. [Read more]

Practical information

Dates and Opening Time
From April 17, 2026 to April 18, 2026

× Approximate opening times: to confirm opening times, please contact the establishment.

    Location

    Asnières-sur-Oise
    95270 Asnieres sur Oise

    Route planner

    Prices
    Visite guidée: €17.5 - €18.5
    Jeu codex: €25

    Official website
    www.billetweb.fr

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