For those staying in one of the hotels near Charles de Gaulle Airport or the Parc des Expositions de Villepinte, there’s some nice running in Parc de Sausett & Parc Robert Ballanger. The Parc des Expositions de Villepinte is the largest convention center in France. There’s a large number of hotels in the Aulnay sous Bois & Villepinte area.

Parc Sausset is a pretty, 200-acre park consisting of open fields, landscaped gardens, and woodlands. There are several km of lanes and trails, including a 6.5 km trail designed as a walking tour of the garden and woodlands displaying the park’s design and history. You can add ~3 km out & back with the trail through the adjacent Parc Robert Ballanger.

Note: Parc Sausset is across the A104 highway — walking access from the convention center isn’t great.