I've just watched a video on YT where someone announced that due to electricity prices going up by 6% the French have decided to protest by shutting down the whole of France on 22 June 2019. Apparently this will halt all rail/sea/air travel, close shops and affect all non essential services, with only the emergency services and hospitals operating.
It sounds very extreme and has not been confirmed on mainstream media. If it's genuine, it will surely affect many tourists. I don't know what to make of it - perhaps someone in France would be able to confirm this story?