Bois de Boulogne The Bois de Boulogne is a park located along the western edge of the 16ème arrondissement of Paris, near the suburb of Boulogne-Billancourt. It has a vaste area, it is more than two times larger than Central Park in New York, and more than three times larger than Hyde Park in London. These "Boulogne Woods" are a remnant of the ancient oak forest of Rouvray, which was first mentioned in 717, in the charter of Compiègne.
Stepping back to the 21st century, if you are working (...)

No problem, during the day it is perfectly safe. You will see lots of people running, families going out... however after nightfall the scenery changes :)