For those traveling on RER B on sunday back to CDG airport, well , you won’t …. It’s closed between Gare du Nord and the airport. So you’ll have to a take an Air France bus from Nation / Madeleine / Montparnasse or get a taxi / Uber / whatever.
There might a strike Saturday, typical French cunts ….
It’s bank holiday Thursday, and many people will « make the bridge » to get a 4 days weekend.
As much as you can, enjoy food and wine down here, it’s the best place in the world for that.
Restaurants could be a bit expensive, but you go to a supermarket, you buy some charcuterie ( ham and sausage ), cheese, some wine, real glasses and you go out for a picnic on the banks of the Seine River, Bois de Vincennes which is really close to cours de Vincennes / Nation where the fanzone will stand , or jardin du Luxembourg.