The 24 Hours of Le Mans is a car race with a duration of 24 hours , taking place in June on a road circuit , south of the city of Le Mans, in the department of Sarthe in France . This event exists since 1923 .
The field of Nature's Ark is managed by city of Le Mans, it offers visitors a vast natural area . Over the paths , walkers discover the river, farmland and forest and can get to the Water House and the meadow Farm . In all, there are 450 hectares of nature that are open and free to the public.