Concerning the forests, you will find the information on this link
the article L131-1 of the forest code forbidden to carry or light a fire within 200 meters of a wooded area. (click on the article to access its content) Regarding public places, contact the town council to know the provisions applying and to ask if there are equipment available.
( click here to access the public services directory ).
In any case, I urge you to always be very careful when lighting a fire.