All travel information as well as your proof of vaccination, in either French or English, have to be uploaded in ArriveCAN within 72 hours of travel. ArriveCAN is available to download as a mobile app or you can create an account online. Be prepared to show your proof of vaccination when you enter a restaurant (including the hotel restaurant), a gym (including the hotel gym), the hotel pool and when you enter the conference/event site. You will not need to show a proof of vaccination when entering a hotel or a museum.