Sightseers will need a special COVID pass to visit the Eiffel Tower or go to museums and cinemas in France in a desperate move by its government to curb the spread of the Delta variant.
People must show they are either fully vaccinated, have a negative test or prove they have recently recovered from COVID-19 to get a pass.
Following a government decree, the requirement went into effect on Wednesday at cultural and tourist sites.
President Emmanuel Macron announced the rollout last week in a bid to boost vaccinations.
The health pass was previously only required for large-scale festivals or nightclubs, but will also be needed from the start of August to enter restaurants and bars and for long-distance train and plane journeys.
French MPs will debate on the bill on Wednesday, which has sparked resistance from many people, with anti-vaccine protesters planning a demonstration later on.
The new measure comes a day after the country recorded 18,181 new infections in 24 hours, more than double the figure from just a week ago.
France last recorded more than 18,000 daily infections on 13 May, when the country was under a nighttime curfew and non-essential shops, bars and restaurants were closed.
Some regions are now re-imposing virus restrictions amid the surge in cases, due to the Delta variant first identified in India.
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