ITER Open Doors Day — 5 December 2026

The ITER Organization and the European Domestic Agency for ITER, Fusion for Energy, invite you to the upcoming edition of the public ITER Open Doors Day on Saturday 5 December 2026.

Throughout the day, a variety of activities will be offered in a mini science village, combining virtual reality experiences and scientific experiments.

The highlight of the day will be a tour of the construction site, including a stop at the Assembly Hall. Bus tours will depart approximately every 30 minutes (advance booking and an e-ticket are required).

How to subscribe?

  • Register online and choose a time slot
  • Bring your identity card or passport on the day of the visit (REMINDER: a driver's licence is not accepted as a proof of identity)
  • Bring your E-ticket (printed or electronic version).
  • Wear clothes compatible with a worksite visit: flat, closed shoes; no skirts, shorts, or dresses.

Register online

The Open Doors Day will take place between 09:30 a.m. and 05:30 p.m. and is free of charge.

  • Worksite visits in English depart from 10:00 a.m. to 11:30 a.m.
  • Worksite visits in French depart from 12:00 p.m. to 04:00 p.m. (no translation).

Security information

  • Children below the age of 6 will not be allowed to attend any part of the Open Doors Day.
  • The construction site tour is not adapted to visitors with impaired mobility.
  • Please note: visitors will be required to walk on the ITER site and through ITER buildings, and to negotiate stairs (up and down) during the visit.
  • Please make sure that each participant you register is capable of this level of mobility.

Practical details

  • Please proceed to the ITER Organization Headquarters parking lot (“ITER Headquarters”).

  • Check in at the reception desk with your identity document (a valid passport or national identity card is mandatory) and your e-ticket.

  • Shuttle buses to the Visitors Centre will run every 10 minutes starting at 9:30 a.m.

  • Buses to the construction site will depart every 30 minutes.

  • Tickets are nominative. Please respect the departure time indicated on your ticket for the bus tour of the construction site.

  • Personal protective equipment (PPE) will be provided on site.

  • At the end of your visit, shuttle buses will take you back to the Headquarters parking lot.

  • Food and refreshments will be available on site (cafeteria and snack bar).

In anticipation of your visit

In accordance with the Host State “VIGIPIRATE” rules, access to the ITER site is subject to measures such as inspection of bags, luggage and packages.

In order to ease the the process of access control conditions and visual inspection, you are requested to apply the following rules when entering the ITER site:

  • For vehicles that have a hatchback cover, the cover shall be removed to allow ease of visual inspection.
  • The left rear window shall be completely lowered.
  • The boot (trunk) of the vehicle shall be kept as empty as possible, to enable effective visual inspection.
  • The ITER Organization requires a certain amount of personal information from visitors in order to ensure the appropriate level of safety and security.

For more information, see our data privacy and data protection page.