Upvote:2
Many (most I believe) French beaches are now open for the public, sometimes with restrictions. It depends on the local authorities.
Sources:
Upvote:3
Most beaches should have reopened but rules could differ locally, the best way to be absolutely sure that there are no restrictions is to check for signs before going onto the beach.
The main thing to know is that whenever there were restrictions, it was usually a ban on so-called “static“ use of the beach, i.e. you could go there, swim, surf, walk or run and then go back home but sunbathing or spending the day at the beach was not allowed. I have never heard of slots or reservations on French beaches. Right now, even “static“ acitivites should be allowed but it is still forbidden to gather in groups of more than 10 people (except for political reasons, following a court decision).