Zoo of Lille
I was surprised to learn that Lille has its own Zoo. Moreover, this Zoo is pretty big and it is free of charge. It is a heaven for kids and their parents may take a break while children are teasing monkeys or mocking parrots.
It is open from 10 a.m. to 6(7) p.m. between 27 March and 29 October and between 10 a.m. to 5 p.m. every day except Tuesday during the winter season. It is completely close from December to 10 February and the first weekend of September. Sometimes they organise master classes for children, To follow the agenda you may go to its facebook page.
Other posts about Lille are here: