During our holiday in Paris last month, we went for a walk in the woods every couple of days. It was mid autumn and the leaves were falling to create a soft, yellow carpet.
There are plenty of woods in Paris. This one is Bois de Boulogne, which has lots of walking trails. It looks and feels like you are way out in the countryside. But it is actually just two Metro stops from the Arc de Triomphe, and you occasionally have a glimpse of the Eiffel tower in between the trees.