Between the River Seine and the busy rail yards of Gare de Lyon and Gare de Bercy, there is a large green space known as Parc de Bercy. While it might look quite big, it seems smaller when compared to the vast Bois de Vincennes, which is also located in Paris’s 12th arrondissement.
Parc de Bercy is a convenient spot for people heading to events at the nearby AccorHotels Arena. Visitors often spend time here relaxing or meeting friends before concerts and sporting events begin. The open lawns and shaded paths offer a peaceful break from the city’s busy streets, making it a popular choice for those waiting for doors to open or crowds to gather.
Source - https://en.wikipedia.org/wiki/Parc_de_Bercy