So, we walked the entire length of the Prominade Plantee yesterday and ended up a spit and a hop from the Bois de Vincennes. I wanted to explore but spouse wasn't sure if it was a good idea (safe, etc.) -- we each recall long, long ago advice to avoid the "Bois" in general (in particular, the Bois de Boulogne -- the Bois is dangerous, dark and deep...). So, we turned back and walked to Bercy and the Bibliotheque 'bookends'. I offered to do some research.
The Wiki data on the Chateau de Vincennes, and the park in general, makes it sound like a worthy place to visit/explore. Any experiences? (good or bad).