Linked visits are alternatives or continuations, not a claim that all are adjacent.
What to look for on site
Adults, children and groups have different booking options. Choose one main exhibition, then check slots for the planetarium and capacity-limited spaces.
Choose spaces according to the group's ages and interests before booking. Check slots and individual activity reservations. One ticket does not mean access to every offer.
Are the duration and budget guaranteed?
The suggested duration of 3 h is planning guidance, excluding travel and unpredictable waiting. Budget categories are editorial indications, not ticket prices. Free entry can have exceptions for exhibitions and activities; confirm the exact visit with the provider.
Sources may use French. Confirm opening hours, ticket inclusions, reservations and temporary restrictions for your exact date. For accessibility, check the entire journey from transport to entrance and facilities with the provider.